bugzilla-data-medium.json

{"bugs":[{"id":560067,"component":"Layout","op_sys":"All","priority":"--","creation_time":"2010-04-18T03:14:10Z","last_change_time":"2024-02-20T05:25:50Z","status":"ASSIGNED","severity":"S3","summary":"animated images inside visibility:hidden still eat CPU","keywords":["leave-open","perf","perf:resource-use","power"]},{"component":"Performance","id":1543783,"op_sys":"Android","priority":"P1","creation_time":"2019-04-11T18:20:49Z","last_change_time":"2024-04-08T18:36:30Z","severity":"S3","summary":"m.facebook.com live site loads 1s slower in Fenix/GVE than Fennec 64","status":"ASSIGNED","keywords":["perf:pageload"]},{"last_change_time":"2024-12-18T18:39:46Z","creation_time":"2020-04-21T20:35:58Z","keywords":["perf","perf:startup"],"status":"ASSIGNED","severity":"N/A","summary":"move system addons into builtins in omni.ja","component":"General","id":1631932,"priority":"P3","op_sys":"Unspecified"},{"creation_time":"2024-09-06T08:07:25Z","last_change_time":"2024-12-19T06:19:03Z","summary":"MemoryTelemetry::GatherReports should not run in idle processes","severity":"S2","status":"ASSIGNED","keywords":["perf:resource-use","regression"],"id":1917184,"component":"XPCOM","op_sys":"Unspecified","priority":"P2"},{"keywords":[],"status":"ASSIGNED","severity":"S3","summary":"js::jit::GenerateCode spends a lot of time in malloc lock contention","last_change_time":"2024-11-19T16:44:36Z","creation_time":"2024-10-01T18:43:40Z","priority":"P3","op_sys":"Android","id":1922073,"component":"JavaScript Engine: JIT"},{"id":91242,"component":"CSS Parsing and Computation","op_sys":"All","priority":"P3","creation_time":"2001-07-18T04:11:33Z","last_change_time":"2024-08-15T14:01:50Z","severity":"S3","summary":"CSS parsing is 5.5% of startup time","status":"NEW","keywords":["arch","perf","perf:startup"]},{"keywords":["perf"],"summary":"Page with lots of <pre> text (or rather: extremely deeply-nested inline tags, with lots of linebreaks) uses lots of memory in layout arenas and is slow to load","severity":"S3","status":"NEW","last_change_time":"2023-05-15T19:04:00Z","creation_time":"2003-08-17T03:26:28Z","priority":"--","op_sys":"All","component":"Layout","id":216418},{"id":304683,"component":"Graphics: ImageLib","priority":"--","op_sys":"All","last_change_time":"2024-09-04T13:05:12Z","creation_time":"2005-08-15T08:01:49Z","keywords":["perf:pageload","perf:resource-use","perf:responsiveness","reproducible"],"status":"NEW","summary":"firefox struggles with large doxygen html file in nsLocalFile::GetLastModifiedTime (from imgLoader)","severity":"S3"},{"id":651049,"component":"XML","op_sys":"All","priority":"--","creation_time":"2011-04-19T08:20:35Z","last_change_time":"2023-08-23T01:33:13Z","summary":"Write a new off-the-main-thread IO driver for expat","severity":"S3","status":"NEW","keywords":["perf:pageload"]},{"creation_time":"2014-06-18T15:22:41Z","last_change_time":"2023-12-04T11:49:57Z","status":"NEW","summary":"Make ImageLib share cached imgRequests for the same SVG document even if the URI has a different ref/hash","severity":"S3","keywords":["perf:pageload","perf:resource-use","reproducible","testcase-wanted"],"id":1027106,"component":"Graphics: ImageLib","op_sys":"All","priority":"--"},{"last_change_time":"2024-06-04T18:21:25Z","creation_time":"2014-07-13T16:33:17Z","keywords":["csectype-dos","hang","memory-leak","perf:responsiveness","reproducible","testcase"],"status":"NEW","severity":"S3","summary":"Website causes Firefox to completely hang because same script file is getting loaded over and over again","component":"New Tab Page","id":1037984,"priority":"P2","op_sys":"All"},{"component":"DOM: Core & HTML","id":1107626,"priority":"P5","op_sys":"All","last_change_time":"2022-03-02T15:47:27Z","creation_time":"2014-12-04T20:16:51Z","keywords":["perf:resource-use"],"severity":"S4","summary":"Evaluate aggregating timers to reduce the number of times we wake up the CPU for serving them","status":"NEW"},{"creation_time":"2015-05-07T20:09:26Z","last_change_time":"2023-07-24T12:16:09Z","status":"NEW","summary":"Thumbnail generation should have a time limit","severity":"--","keywords":["memory-footprint","memory-leak","perf","perf:responsiveness","top-memory-leak"],"component":"New Tab Page","id":1162698,"op_sys":"All","priority":"P3"},{"priority":"--","op_sys":"All","id":1304389,"component":"Session Restore","keywords":["meta","perf:animation","perf:resource-use","perf:responsiveness","reproducible"],"severity":"S3","summary":"Session Restore generates sustained large disk traffic [meta]","status":"NEW","last_change_time":"2024-09-03T17:02:27Z","creation_time":"2016-09-21T13:54:15Z"},{"keywords":["perf","perf:pageload"],"severity":"S3","summary":"Consider using FramePropertyTable less in layout","status":"NEW","last_change_time":"2022-10-11T19:06:39Z","creation_time":"2017-03-18T03:14:39Z","priority":"P3","op_sys":"Unspecified","component":"Layout","id":1348469},{"creation_time":"2017-03-23T02:16:50Z","last_change_time":"2022-10-11T19:07:40Z","status":"NEW","summary":"getElevationRequired janks the parent process by doing IO on the main thread","severity":"S3","keywords":["perf","perf:responsiveness"],"component":"Application Update","id":1349809,"op_sys":"macOS","priority":"P3"},{"priority":"P3","op_sys":"Unspecified","id":1357205,"component":"Add-ons Manager","keywords":["perf:startup"],"status":"NEW","summary":"move built-in add-ons into omni.ja","severity":"S3","last_change_time":"2022-10-11T19:12:45Z","creation_time":"2017-04-17T21:50:27Z"},{"priority":"P3","op_sys":"Unspecified","component":"Bookmarks & History","id":1363131,"keywords":["perf:responsiveness"],"status":"NEW","severity":"S3","summary":"Showing the bookmarks panel is too slow the first time","last_change_time":"2024-04-03T13:53:20Z","creation_time":"2017-05-08T18:35:31Z"},{"op_sys":"Unspecified","priority":"--","component":"XPCOM","id":1363586,"status":"NEW","severity":"S3","summary":"[meta] Creating the XPCOM system info service is super expensive","keywords":["meta","perf","perf:responsiveness","perf:startup"],"creation_time":"2017-05-10T02:24:10Z","last_change_time":"2022-10-11T19:16:59Z"},{"last_change_time":"2022-10-11T19:17:24Z","creation_time":"2017-05-11T14:44:03Z","keywords":["perf","perf:responsiveness","perf:startup"],"summary":"Defer mozilla::widget::AudioSession::Start() until later in startup","severity":"S3","status":"NEW","component":"Widget: Win32","id":1364091,"priority":"P3","op_sys":"Unspecified"},{"component":"Security: PSM","id":1370516,"op_sys":"Unspecified","priority":"P2","creation_time":"2017-06-06T12:51:51Z","last_change_time":"2023-12-11T13:17:23Z","summary":"NSS should be initialized off main thread","severity":"S3","status":"NEW","keywords":["perf:responsiveness","perf:startup"]},{"component":"Toolbars and Customization","id":1374216,"priority":"P3","op_sys":"Unspecified","last_change_time":"2022-10-11T19:24:38Z","creation_time":"2017-06-19T08:52:46Z","keywords":["perf:frontend","perf:startup","regression","regressionwindow-wanted"],"status":"NEW","severity":"S3","summary":"Add-on icons should be in the navbar by first paint"},{"id":1388538,"component":"JavaScript Engine","priority":"P3","op_sys":"Unspecified","last_change_time":"2024-12-06T16:27:49Z","creation_time":"2017-08-08T21:56:17Z","keywords":[],"status":"NEW","severity":"S3","summary":"Add ICs for slotful own-prop Xray property access (property on the expando)"},{"id":1393977,"component":"JavaScript Engine","op_sys":"All","priority":"P3","creation_time":"2017-08-25T20:33:04Z","last_change_time":"2022-10-11T19:37:50Z","status":"NEW","summary":"Compiling the same script again and again for each embedded YouTube video","severity":"S3","keywords":["perf"]},{"component":"Audio/Video: Playback","id":1400787,"priority":"P3","op_sys":"macOS","last_change_time":"2022-10-11T19:42:53Z","creation_time":"2017-09-18T08:13:45Z","keywords":["perf:resource-use"],"severity":"S3","summary":"Using software video decoders (include VP9) ramps up computer fans on Macbook.","status":"NEW"},{"severity":"S3","summary":"drag gecko hashtables into the current century","status":"NEW","keywords":["perf","perf:responsiveness"],"creation_time":"2017-09-25T16:43:13Z","last_change_time":"2022-10-11T19:44:41Z","op_sys":"All","priority":"P3","id":1402910,"component":"XPCOM"},{"id":1406622,"component":"CSS Parsing and Computation","priority":"P2","op_sys":"Unspecified","last_change_time":"2022-10-11T19:47:36Z","creation_time":"2017-10-07T10:11:51Z","keywords":["perf:responsiveness"],"status":"NEW","severity":"S3","summary":"stylo: use invalidation framework to handle restyles needed in response to content insertion/removal"},{"keywords":["perf","perf:frontend"],"summary":"With tab animations disabled, closing current tab to switch to another will visibly show a blank page with spinner (causing flashing)","severity":"S3","status":"NEW","last_change_time":"2023-03-15T20:38:46Z","creation_time":"2017-12-18T17:47:35Z","priority":"P3","op_sys":"All","component":"Tabbed Browser","id":1425887},{"component":"JavaScript Engine","id":1428972,"priority":"P2","op_sys":"Unspecified","last_change_time":"2022-10-11T21:09:38Z","creation_time":"2018-01-09T05:47:13Z","keywords":["perf"],"summary":"RexBench is slower than Chrome/WebKit","severity":"S3","status":"NEW"},{"creation_time":"2018-02-21T13:15:04Z","last_change_time":"2024-04-03T03:06:41Z","status":"NEW","severity":"S3","summary":"Activity stream initialization causes jank after receiving the sessionstore-windows-restored notification","keywords":["perf:frontend","perf:startup"],"id":1439892,"component":"New Tab Page","op_sys":"Unspecified","priority":"P3"},{"op_sys":"Unspecified","priority":"P3","component":"CSS Parsing and Computation","id":1443066,"status":"NEW","summary":"Try to understand why we're slower than Chrome on StyleBench \"Positional pseudo classes : Adding leaf elements: Async\" (& similar \"Removing\" measurement)","severity":"S3","keywords":["perf","perf:responsiveness"],"creation_time":"2018-03-05T04:29:30Z","last_change_time":"2022-10-11T21:21:11Z"},{"component":"Application Update","id":1446012,"priority":"P3","op_sys":"Unspecified","last_change_time":"2022-10-11T21:23:37Z","creation_time":"2018-03-15T16:29:05Z","keywords":["perf:startup"],"summary":"The first startup after an update does main thread I/O to update.status several times","severity":"S3","status":"NEW"},{"id":1454586,"component":"JavaScript Engine: JIT","op_sys":"All","priority":"P3","creation_time":"2018-04-17T08:42:34Z","last_change_time":"2022-10-11T21:30:16Z","summary":"Optimize resume point creation in IonBuilder","severity":"S3","status":"NEW","keywords":["perf"]},{"op_sys":"Unspecified","priority":"P3","component":"Networking: JAR","id":1456626,"status":"NEW","summary":"nsJARChannel::asyncOpen can still block","severity":"S3","keywords":["perf","perf:responsiveness","perf:startup"],"creation_time":"2018-04-24T20:33:58Z","last_change_time":"2022-10-11T21:31:53Z"},{"status":"NEW","severity":"S3","summary":"Checkerboarding while scrollbar-dragging due to slow display list build on specific page with table layout","keywords":["nightly-community","perf","perf:responsiveness","regression"],"creation_time":"2018-04-24T21:08:43Z","last_change_time":"2024-09-22T12:19:05Z","op_sys":"Windows 7","priority":"P3","component":"Web Painting","id":1456638},{"keywords":["perf","perf:responsiveness"],"status":"NEW","summary":"It takes a long time to re-layout the plaintext page when the sidebar is opening or closing until  move the mouse in the content area (with long time spent in RFindLineContaining)","severity":"S3","last_change_time":"2024-02-08T23:49:09Z","creation_time":"2018-04-25T19:10:14Z","priority":"P3","op_sys":"Windows 10","id":1456964,"component":"Layout: Block and Inline"},{"summary":"TabChild::RecvRenderLayers often results in two consecutive paints","severity":"S3","status":"NEW","keywords":["perf:resource-use"],"creation_time":"2018-04-26T19:55:49Z","last_change_time":"2023-09-21T15:50:42Z","op_sys":"Unspecified","priority":"P2","component":"DOM: Content Processes","id":1457276},{"id":1458634,"component":"Bookmarks & History","priority":"P3","op_sys":"Unspecified","last_change_time":"2023-05-22T15:45:39Z","creation_time":"2018-05-02T18:01:37Z","keywords":["perf","perf:resource-use","perf:responsiveness"],"status":"NEW","severity":"S3","summary":"\"forget about this site\" in \"show all history\" blocks the main thread"},{"keywords":["perf:pageload"],"status":"NEW","summary":"High variability in performance testing with large images","severity":"S3","last_change_time":"2022-10-11T21:41:13Z","creation_time":"2018-06-11T20:32:18Z","priority":"P3","op_sys":"Unspecified","id":1468246,"component":"Layout"},{"last_change_time":"2022-10-11T21:43:40Z","creation_time":"2018-06-25T21:14:25Z","keywords":["hang","perf:resource-use","power"],"status":"NEW","summary":"High cpu/gpu usage and hangs on page-http://telegra.ph/Telegram-X-03-26 & other pages","severity":"S3","id":1471029,"component":"Audio/Video: Playback","priority":"P3","op_sys":"All"},{"id":1476101,"component":"Security: Process Sandboxing","priority":"P2","op_sys":"Windows","last_change_time":"2022-10-11T21:47:20Z","creation_time":"2018-07-16T20:44:07Z","keywords":["perf:responsiveness","perf:startup"],"status":"NEW","severity":"S3","summary":"Optimize Windows sandbox policy construction"},{"severity":"S3","summary":"style.foo = bar changes are slow","status":"NEW","keywords":["perf:responsiveness"],"creation_time":"2018-07-27T10:44:44Z","last_change_time":"2022-10-11T21:49:50Z","op_sys":"Unspecified","priority":"P3","component":"CSS Parsing and Computation","id":1478953},{"creation_time":"2018-08-02T16:18:10Z","last_change_time":"2024-09-03T16:59:49Z","severity":"S3","summary":"Removing DOM children where positional pseudo-classes are involved is really slow.","status":"NEW","keywords":["perf:responsiveness"],"component":"CSS Parsing and Computation","id":1480477,"op_sys":"Unspecified","priority":"P2"},{"id":1481967,"component":"Audio/Video: Playback","priority":"P2","op_sys":"All","last_change_time":"2022-10-11T21:52:11Z","creation_time":"2018-08-08T22:40:31Z","keywords":["perf:resource-use"],"severity":"S3","summary":"100% cpu usage and high memory use on page with multiple embedded videos","status":"NEW"},{"last_change_time":"2024-09-21T13:28:21Z","creation_time":"2018-08-14T19:58:58Z","keywords":[],"severity":"S3","summary":"Try and re-attach NewObject stubs after GC","status":"NEW","component":"JavaScript Engine: JIT","id":1483345,"priority":"P3","op_sys":"Unspecified"},{"creation_time":"2018-09-04T14:10:08Z","last_change_time":"2024-07-16T07:42:18Z","summary":"Significant key input delay when typing on large Google Docs","severity":"S3","status":"NEW","keywords":[],"id":1488435,"component":"JavaScript Engine","op_sys":"macOS","priority":"P3"},{"id":1490847,"component":"JavaScript Engine: JIT","priority":"P2","op_sys":"Unspecified","last_change_time":"2023-07-18T21:09:40Z","creation_time":"2018-09-12T22:40:00Z","keywords":["meta"],"status":"NEW","severity":"S3","summary":"[meta] Long-standing Ion Compilation Time Issues"},{"component":"JavaScript Engine: JIT","id":1490849,"priority":"P2","op_sys":"Unspecified","last_change_time":"2024-12-17T17:27:39Z","creation_time":"2018-09-12T22:46:57Z","keywords":[],"severity":"S3","summary":"Off-Main-Thread Baseline Compilation","status":"NEW"},{"priority":"P2","op_sys":"Unspecified","id":1496096,"component":"Audio/Video: Playback","keywords":["perf:resource-use"],"severity":"S3","summary":"Horrible performance on runningworld due to media decoding","status":"NEW","last_change_time":"2022-10-11T22:03:30Z","creation_time":"2018-10-03T15:02:45Z"},{"priority":"P3","op_sys":"Android","component":"JavaScript Engine","id":1498485,"keywords":["perf:responsiveness"],"severity":"S3","summary":"hubs.mozilla.com frame rate with an empty scene is too slow in FxR on Oculus Go","status":"NEW","last_change_time":"2024-05-03T15:18:39Z","creation_time":"2018-10-12T07:38:21Z"},{"last_change_time":"2024-09-22T12:17:26Z","creation_time":"2018-10-26T12:54:03Z","keywords":["perf:animation","regression","reproducible","top50"],"status":"NEW","severity":"S3","summary":"Reddit content is no longer displayed when scrolled (checkerboarding), with long restyles","component":"CSS Parsing and Computation","id":1502334,"priority":"--","op_sys":"All"},{"keywords":["perf:pageload"],"severity":"S3","summary":"twitch.tv site loads slow compared to Chrome","status":"NEW","last_change_time":"2022-10-11T22:10:59Z","creation_time":"2018-11-06T22:12:10Z","priority":"P2","op_sys":"Android","id":1505192,"component":"JavaScript Engine"},{"keywords":["perf:responsiveness"],"status":"NEW","summary":"Getting a list of audio devices on about:support is super slow sometimes","severity":"S3","last_change_time":"2022-10-11T22:11:18Z","creation_time":"2018-11-07T17:49:31Z","priority":"P2","op_sys":"Unspecified","id":1505483,"component":"Audio/Video"},{"id":1505533,"component":"Graphics","op_sys":"Unspecified","priority":"P5","creation_time":"2018-11-07T19:32:59Z","last_change_time":"2024-03-20T20:46:07Z","summary":"graphics data gathering (and/or canvas webgl context initialization) from about:support is slow","severity":"S3","status":"NEW","keywords":["main-thread-io","perf:responsiveness"]},{"keywords":["perf:responsiveness"],"status":"NEW","severity":"S3","summary":"Do an optimization to not flush animations which are running on the compositor in various places where we call FlushPendingNotification","last_change_time":"2022-10-11T22:12:27Z","creation_time":"2018-11-13T04:54:48Z","priority":"P3","op_sys":"Unspecified","component":"DOM: Animation","id":1506765},{"keywords":["perf:frontend","perf:responsiveness","perf:startup"],"summary":"Try persisting chromemargin and brighttext attributes on browser windows","severity":"S3","status":"NEW","last_change_time":"2022-10-11T22:12:38Z","creation_time":"2018-11-13T21:07:29Z","priority":"P5","op_sys":"Unspecified","id":1506962,"component":"Tabbed Browser"},{"creation_time":"2018-11-20T19:36:06Z","last_change_time":"2023-07-24T12:22:05Z","severity":"S3","summary":"Firefox is very slow to render poster PDF","status":"NEW","keywords":["parity-chrome","perf","perf:animation","perf:pageload","perf:responsiveness","regression","reproducible"],"component":"PDF Viewer","id":1508765,"op_sys":"Unspecified","priority":"P3"},{"summary":"Optimizing nsGlobalWindowOuter::NotifyContentBlockingState() seems to have an impact on pageload","severity":"S3","status":"NEW","keywords":["perf","perf:pageload"],"creation_time":"2018-11-22T04:38:51Z","last_change_time":"2022-10-11T22:14:24Z","op_sys":"Unspecified","priority":"P3","component":"DOM: Core & HTML","id":1509228},{"priority":"P3","op_sys":"Unspecified","id":1515414,"component":"JavaScript: GC","keywords":["perf","perf:pageload"],"summary":"Defer GCs in background tabs/processes during pageload","severity":"S3","status":"NEW","last_change_time":"2022-10-11T22:19:55Z","creation_time":"2018-12-19T19:35:51Z"},{"creation_time":"2018-12-19T22:43:20Z","last_change_time":"2024-08-03T20:54:28Z","status":"NEW","summary":"CPU intensive slideshow on http://thesantaclausparade.com/","severity":"S3","keywords":["perf","perf:responsiveness"],"id":1515473,"component":"Graphics","op_sys":"Unspecified","priority":"P3"},{"component":"General","id":1515799,"op_sys":"Unspecified","priority":"P3","creation_time":"2018-12-20T23:13:35Z","last_change_time":"2023-08-05T01:39:19Z","status":"NEW","summary":"[meta] reduce impact/overhead of custom element use on startup","severity":"S3","keywords":["meta","perf:frontend","perf:startup"]},{"id":1516525,"component":"Downloads Panel","priority":"P5","op_sys":"Unspecified","last_change_time":"2022-10-11T22:20:48Z","creation_time":"2018-12-27T14:05:19Z","keywords":["perf:frontend","perf:startup"],"summary":"Download indicator code should use idle task and/or not load until there are downloads","severity":"S3","status":"NEW"},{"op_sys":"Unspecified","priority":"P2","component":"CSS Parsing and Computation","id":1517254,"status":"NEW","severity":"S3","summary":"Slow load and long delay before search field can be interacted with on https://scouts.org.uk","keywords":["perf:responsiveness"],"creation_time":"2019-01-02T14:52:14Z","last_change_time":"2022-10-11T22:21:13Z"},{"last_change_time":"2022-10-11T22:24:11Z","creation_time":"2019-01-17T08:50:51Z","keywords":["perf:responsiveness"],"severity":"S3","summary":"jetbrains \"upsource\" file-view hangs the browser, when scrolled","status":"NEW","id":1520729,"component":"Layout","priority":"P2","op_sys":"Unspecified"},{"last_change_time":"2022-10-11T22:25:37Z","creation_time":"2019-01-23T18:40:07Z","keywords":["perf:pageload"],"status":"NEW","severity":"S3","summary":"InitOtherFamilyNamesRunnable can slow down first page load and take > 100ms","id":1522196,"component":"Layout: Text and Fonts","priority":"P2","op_sys":"All"},{"priority":"P3","op_sys":"All","component":"Preferences","id":1523028,"keywords":["meta","perf","perf:responsiveness","regression"],"summary":"[meta] Performance of \"about:config\"","severity":"S3","status":"NEW","last_change_time":"2024-09-22T12:25:57Z","creation_time":"2019-01-26T00:23:18Z"},{"last_change_time":"2023-05-03T01:27:00Z","creation_time":"2019-01-31T20:58:54Z","keywords":["perf:responsiveness"],"status":"NEW","severity":"S3","summary":"Twitch.tv video's (vod) freeze during playback on MacOS","id":1524384,"component":"Audio/Video: Playback","priority":"P2","op_sys":"macOS"},{"severity":"S3","summary":"Scroll jank when mousewheel-scrolling slide thumbnails on Google Docs (with lots of time spent painting & in GetFrameForPoint)","status":"NEW","keywords":["perf:responsiveness"],"creation_time":"2019-02-11T18:16:31Z","last_change_time":"2022-10-11T22:29:04Z","op_sys":"Unspecified","priority":"P2","id":1527037,"component":"Web Painting"},{"priority":"P2","op_sys":"Unspecified","id":1528285,"component":"Networking: HTTP","keywords":["meta","perf:pageload"],"summary":"[meta] Allow call of AsyncOpen and OnStart/OnStopRequest off the main thread","severity":"S3","status":"NEW","last_change_time":"2023-06-30T18:02:44Z","creation_time":"2019-02-15T16:08:16Z"},{"creation_time":"2019-03-11T18:25:07Z","last_change_time":"2023-08-05T01:38:55Z","severity":"S3","summary":"Lazy load browser.xul menus","status":"NEW","keywords":["perf:frontend","perf:startup"],"id":1534371,"component":"Menus","op_sys":"Unspecified","priority":"P3"},{"id":1536622,"component":"Graphics","op_sys":"macOS","priority":"P3","creation_time":"2019-03-19T21:20:53Z","last_change_time":"2023-02-01T17:22:05Z","severity":"S3","summary":"[10.14.4] Poor battery life on MacBook Pro","status":"NEW","keywords":["perf","perf:resource-use"]},{"last_change_time":"2024-04-02T13:41:19Z","creation_time":"2019-03-20T07:53:47Z","keywords":["perf:responsiveness"],"summary":"Performance is slow/janky with a full complement of add-ons, restored session, opening discarded tabs","severity":"S3","status":"NEW","component":"General","id":1536739,"priority":"P3","op_sys":"Unspecified"},{"creation_time":"2019-03-25T17:26:55Z","last_change_time":"2022-10-11T22:39:08Z","severity":"S3","summary":"Set nsThreadPool limits more intelligently","status":"NEW","keywords":["perf:resource-use"],"component":"XPCOM","id":1538784,"op_sys":"Unspecified","priority":"--"},{"component":"Graphics","id":1539266,"priority":"P3","op_sys":"Unspecified","last_change_time":"2022-10-11T22:39:22Z","creation_time":"2019-03-26T20:57:57Z","keywords":["perf:responsiveness"],"summary":"Running gfxPlatform::Init in the content process can take a long time","severity":"S3","status":"NEW"},{"component":"Graphics","id":1540226,"priority":"P2","op_sys":"Unspecified","last_change_time":"2022-10-11T22:40:24Z","creation_time":"2019-03-29T19:18:26Z","keywords":["perf:responsiveness"],"severity":"S3","summary":"Brief video and audio interruptions on YouTube when tab is focused after it was in the background","status":"NEW"},{"last_change_time":"2022-10-11T22:41:22Z","creation_time":"2019-04-02T20:18:11Z","keywords":["main-thread-io","perf:startup"],"status":"NEW","severity":"S3","summary":"Avoid nsExceptionHandler::SetupExtraData() doing main thread IO super early on startup","id":1541200,"component":"Crash Reporting","priority":"P2","op_sys":"Unspecified"},{"op_sys":"Unspecified","priority":"P3","id":1541491,"component":"Startup and Profile System","severity":"S3","summary":"Evaluate whether we can stop using compatibility.ini in the common case where app compat info is in profiles.ini / installs.ini","status":"NEW","keywords":["main-thread-io","perf","perf:startup"],"creation_time":"2019-04-03T17:10:18Z","last_change_time":"2024-07-25T20:36:55Z"},{"last_change_time":"2022-10-11T22:41:40Z","creation_time":"2019-04-03T17:15:49Z","keywords":["main-thread-io","perf","perf:responsiveness","perf:startup"],"severity":"S3","summary":"Stop writing compatibility.ini piecemeal and on the main thread and on startup","status":"NEW","id":1541494,"component":"Startup and Profile System","priority":"P3","op_sys":"Unspecified"},{"summary":"Very very very carefully... remove channel-prefs.js and stop reading it from the main thread early on startup","severity":"S3","status":"NEW","keywords":["main-thread-io","perf","perf:startup"],"creation_time":"2019-04-03T21:31:57Z","last_change_time":"2024-01-29T10:01:40Z","op_sys":"Unspecified","priority":"--","component":"Startup and Profile System","id":1541601},{"keywords":["meta","perf:pageload"],"summary":"[meta] 5+ second delays seen while loading www.allrecipes.com on geckoview_example","severity":"S3","status":"NEW","last_change_time":"2024-04-08T18:35:59Z","creation_time":"2019-04-11T17:55:48Z","priority":"P2","op_sys":"Unspecified","component":"Performance","id":1543776},{"op_sys":"Unspecified","priority":"--","component":"XPCOM","id":1544019,"severity":"S3","summary":"Consolidate IO for startupCache folder access","status":"NEW","keywords":["main-thread-io","perf","perf:startup"],"creation_time":"2019-04-12T14:40:08Z","last_change_time":"2023-05-31T19:21:00Z"},{"keywords":["main-thread-io","perf","perf:responsiveness","perf:startup"],"status":"NEW","severity":"S3","summary":"Investigate compressing omni.ja's (with lz4)","last_change_time":"2022-10-11T22:44:28Z","creation_time":"2019-04-15T18:19:33Z","priority":"P3","op_sys":"Unspecified","id":1544504,"component":"Startup and Profile System"},{"component":"Application Update","id":1545119,"priority":"P5","op_sys":"Unspecified","last_change_time":"2023-06-26T23:49:36Z","creation_time":"2019-04-17T15:06:25Z","keywords":["main-thread-io","perf:startup"],"summary":"Update service tries to migrate things from \"old update dir\" early on startup and does main thread IO","severity":"S3","status":"NEW"},{"op_sys":"Unspecified","priority":"P3","id":1548033,"component":"Startup and Profile System","status":"NEW","severity":"S3","summary":"Only prefetch the parts of XUL.dll  that we actually will need","keywords":["main-thread-io","perf","perf:startup"],"creation_time":"2019-04-30T16:38:33Z","last_change_time":"2022-10-11T22:47:35Z"},{"creation_time":"2019-05-02T14:17:10Z","last_change_time":"2022-10-11T22:48:08Z","severity":"S3","summary":"Stopping blocking bfcache on unconnected peerconnections","status":"NEW","keywords":["perf:pageload"],"id":1548539,"component":"WebRTC","op_sys":"Unspecified","priority":"P2"},{"last_change_time":"2022-10-11T22:52:33Z","creation_time":"2019-05-22T16:11:19Z","keywords":["main-thread-io","perf","perf:startup"],"summary":"Use minidump-analyzer to append Windows AV/spyware/firewall data to crashreport .extra file; add to telemetry environment data lazily","severity":"S3","status":"NEW","component":"Crash Reporting","id":1553536,"priority":"--","op_sys":"Unspecified"},{"priority":"P3","op_sys":"Unspecified","component":"New Tab Page","id":1553980,"keywords":["perf:resource-use"],"severity":"S3","summary":"Defer initial processing by Privileged Content process at startup","status":"NEW","last_change_time":"2022-10-11T22:52:58Z","creation_time":"2019-05-23T21:51:13Z"},{"status":"NEW","summary":"nsLocalFile's Clone method is too naive, should reuse more information from the original","severity":"S3","keywords":["main-thread-io","perf:resource-use","perf:startup"],"creation_time":"2019-05-24T15:01:19Z","last_change_time":"2023-02-22T18:35:16Z","op_sys":"Unspecified","priority":"--","id":1554200,"component":"XPCOM"},{"keywords":["perf:pageload","perf:responsiveness"],"severity":"S3","summary":"Classifier Update should wait for an user-idle period before initiating an update","status":"NEW","last_change_time":"2022-10-11T22:53:15Z","creation_time":"2019-05-24T20:22:15Z","priority":"P3","op_sys":"Unspecified","component":"Safe Browsing","id":1554313},{"component":"XPCOM","id":1554395,"op_sys":"Unspecified","priority":"--","creation_time":"2019-05-25T14:59:39Z","last_change_time":"2024-09-17T05:36:02Z","status":"NEW","severity":"S3","summary":"StartupCache takes a very long time to write out cache after browser startup","keywords":["perf:pageload"]},{"component":"Security: PSM","id":1557378,"op_sys":"Unspecified","priority":"P3","creation_time":"2019-06-06T15:49:16Z","last_change_time":"2023-12-11T13:15:54Z","status":"NEW","summary":"Investigate linking softokn/freebl/nss thingies directly into libxul or use readahead to make actual nss initialization cheaper","severity":"S3","keywords":["main-thread-io","perf","perf:startup"]},{"id":1566487,"component":"General","priority":"P3","op_sys":"All","last_change_time":"2024-04-03T16:04:02Z","creation_time":"2019-07-16T15:55:54Z","keywords":["perf:resource-use","perf:startup"],"summary":"When defaulting to showing about:home on startup, try to delay WebExtension process start-up until after about:home is done loading","severity":"S3","status":"NEW"},{"priority":"P3","op_sys":"Unspecified","component":"Graphics: WebRender","id":1568027,"keywords":["perf:responsiveness"],"severity":"S3","summary":"WebRender performs worse on Binding of Isaac CodePen demo (svg filters/blob)","status":"NEW","last_change_time":"2024-09-20T22:54:50Z","creation_time":"2019-07-22T20:30:43Z"},{"last_change_time":"2022-10-11T23:08:22Z","creation_time":"2019-07-30T18:44:15Z","keywords":["perf:pageload"],"status":"NEW","severity":"S3","summary":"Investigate fast first paints","id":1570090,"component":"Performance","priority":"P2","op_sys":"Unspecified"},{"op_sys":"Windows","priority":"P3","component":"Widget: Win32","id":1570616,"status":"NEW","summary":"[meta] Move away from sync CoCreateInstance to RoGetAgileReference or similar (to avoid mainthread IO)","severity":"S3","keywords":["main-thread-io","meta","perf:responsiveness","perf:startup"],"creation_time":"2019-08-01T11:28:18Z","last_change_time":"2024-04-30T00:02:56Z"},{"keywords":["perf:pageload"],"status":"NEW","summary":"gfxFontGroup::FindFontForChar took a lot of time during reflow","severity":"S3","last_change_time":"2024-04-08T18:30:47Z","creation_time":"2019-08-01T19:38:04Z","priority":"P3","op_sys":"Unspecified","id":1570750,"component":"Layout: Text and Fonts"},{"component":"Performance","id":1572180,"priority":"P2","op_sys":"Unspecified","last_change_time":"2022-10-11T23:10:26Z","creation_time":"2019-08-07T18:46:11Z","keywords":["perf:resource-use"],"summary":"68 runs 3x slower than 67 on sample script","severity":"S3","status":"NEW"},{"op_sys":"Unspecified","priority":"P5","id":1582525,"component":"Networking","severity":"N/A","summary":"Avoid racing 6 connections for sites known to have been HTTP2 in the past","status":"NEW","keywords":["perf:pageload"],"creation_time":"2019-09-19T18:12:52Z","last_change_time":"2022-03-02T16:34:12Z"},{"id":1583220,"component":"Performance","priority":"P2","op_sys":"Android","last_change_time":"2024-04-08T18:37:25Z","creation_time":"2019-09-23T14:36:55Z","keywords":["perf:pageload","perf:responsiveness","reproducible","top50"],"summary":"Visual metrics: Fenix is significantly slower than Chrome for the site https://cnn.com","severity":"S3","status":"NEW"},{"last_change_time":"2022-10-11T23:23:49Z","creation_time":"2019-10-01T13:25:15Z","keywords":["perf:responsiveness"],"status":"NEW","summary":"Add normal-priority event queue delay time to Responsiveness measurements","severity":"S3","id":1585327,"component":"Performance","priority":"P2","op_sys":"Unspecified"},{"creation_time":"2019-11-19T14:50:13Z","last_change_time":"2023-08-05T01:41:54Z","status":"NEW","summary":"Bookmarks & History: extremely slow back/forward navigation","severity":"S3","keywords":["perf:frontend"],"id":1597684,"component":"Bookmarks & History","op_sys":"Unspecified","priority":"P3"},{"op_sys":"Unspecified","priority":"P3","id":1598384,"component":"JavaScript Engine","summary":"13 seconds of jank when loading https://data.firefox.com/dashboard/hardware","severity":"S3","status":"NEW","keywords":["perf:pageload"],"creation_time":"2019-11-21T18:08:03Z","last_change_time":"2024-09-04T03:21:05Z"},{"last_change_time":"2024-10-14T08:20:50Z","creation_time":"2019-12-12T21:17:30Z","keywords":["perf:pageload","reproducible"],"summary":"Implement caching of retired web-isolated processes for reuse in the same domain in Fission","severity":"S3","status":"NEW","component":"DOM: Navigation","id":1603578,"priority":"P3","op_sys":"Unspecified"},{"component":"Audio/Video: GMP","id":1609444,"op_sys":"Unspecified","priority":"P3","creation_time":"2020-01-15T15:49:54Z","last_change_time":"2022-10-11T23:50:49Z","status":"NEW","severity":"S3","summary":"GMP thread can write to disk (to clear storage or remove plugins) at xpcom-shutdown-threads time","keywords":["perf:responsiveness"]},{"creation_time":"2020-01-16T14:10:52Z","last_change_time":"2024-05-02T17:15:10Z","severity":"S3","summary":"preload required content and parent process scripts at startup of GeckoView","status":"NEW","keywords":["perf:pageload"],"id":1609682,"component":"General","op_sys":"All","priority":"P3"},{"last_change_time":"2024-06-28T12:13:45Z","creation_time":"2020-02-06T20:58:06Z","keywords":["perf:resource-use"],"status":"NEW","severity":"S3","summary":"[fission-power] Synchronize periodic background tasks (such as expiration tracker ticks) across content processes","component":"Performance","id":1613760,"priority":"P2","op_sys":"All"},{"op_sys":"Android","priority":"P2","id":1613824,"component":"Performance","status":"NEW","summary":"Apple Newsroom page takes a long time to load (30 seconds)","severity":"S3","keywords":["perf:pageload"],"creation_time":"2020-02-07T04:18:58Z","last_change_time":"2024-04-08T18:38:02Z"},{"component":"General","id":1614096,"priority":"--","op_sys":"All","last_change_time":"2024-09-02T15:26:30Z","creation_time":"2020-02-08T01:20:13Z","keywords":["meta","perf:responsiveness","sec-want"],"summary":"[meta] Move all devtools UI out of the parent process into a privileged content process","severity":"S3","status":"NEW"},{"component":"Performance","id":1614425,"op_sys":"Android","priority":"P2","creation_time":"2020-02-10T18:50:35Z","last_change_time":"2024-04-08T18:38:17Z","severity":"S3","summary":"https://www.fido.ca/ Pages load on mobile is several seconds slower than chrome","status":"NEW","keywords":["perf:pageload"]},{"creation_time":"2020-02-26T10:02:21Z","last_change_time":"2022-10-12T00:00:07Z","status":"NEW","severity":"S3","summary":"Very slow session restore (profile included)","keywords":["perf:frontend","perf:startup"],"component":"General","id":1618129,"op_sys":"Linux","priority":"--"},{"severity":"S3","summary":"Avoid parsing and compiling self-hosted code during startup (takes 90ms on Android Moto G5)","status":"NEW","keywords":["perf:responsiveness"],"creation_time":"2020-02-26T23:53:36Z","last_change_time":"2024-04-08T18:26:05Z","op_sys":"Android","priority":"P2","component":"JavaScript Engine","id":1618391},{"component":"Performance","id":1622721,"op_sys":"Windows 10","priority":"--","creation_time":"2020-03-16T05:56:39Z","last_change_time":"2023-04-03T17:43:21Z","summary":"Slow performance when scrolling Firefox subreddit top posts of the week","severity":"--","status":"NEW","keywords":["perf:responsiveness"]},{"status":"NEW","summary":"[meta] Script cache information from the content process is never written to disk in GeckoView (10-20ms startup penalty for uncached script loading)","severity":"S3","keywords":["meta","perf:responsiveness"],"creation_time":"2020-03-18T23:56:47Z","last_change_time":"2024-09-17T05:44:07Z","op_sys":"Android","priority":"P3","id":1623518,"component":"General"},{"summary":"gfxDWriteFontEntry::IsCJKFont() causes main thread I/O to times.ttf while reflowing the hidden window during startup","severity":"S3","status":"NEW","keywords":["main-thread-io","perf","perf:startup"],"creation_time":"2020-03-26T22:16:00Z","last_change_time":"2022-10-12T00:05:51Z","op_sys":"Unspecified","priority":"P3","component":"Graphics","id":1625320},{"creation_time":"2020-03-31T00:27:33Z","last_change_time":"2022-04-07T16:16:58Z","status":"NEW","severity":"--","summary":"Ghost-Windows from reddit","keywords":["perf:responsiveness"],"component":"Performance","id":1626132,"op_sys":"Unspecified","priority":"P2"},{"id":1626816,"component":"Graphics: WebRender","priority":"P3","op_sys":"All","last_change_time":"2024-09-17T05:47:16Z","creation_time":"2020-04-02T00:26:08Z","keywords":["perf:responsiveness"],"severity":"S3","summary":"WebRender program cache / shader initialization blocks the main thread via the sync IPC message PWebRenderBridge::EnsureConnected (25ms-40ms startup penalty)","status":"NEW"},{"priority":"P3","op_sys":"Unspecified","id":1630939,"component":"Privacy: Anti-Tracking","keywords":["perf:startup"],"status":"NEW","summary":"URLDecorationAnnotationsService started very early during startup (profile-after-change)","severity":"S3","last_change_time":"2022-04-01T11:20:52Z","creation_time":"2020-04-17T12:24:08Z"},{"priority":"P3","op_sys":"Unspecified","component":"Privacy: Anti-Tracking","id":1630949,"keywords":["perf:startup"],"status":"NEW","summary":"UrlClassifierSkipListService started during startup for uninteresting http requests","severity":"S3","last_change_time":"2022-03-28T19:20:38Z","creation_time":"2020-04-17T13:05:55Z"},{"component":"New Tab Page","id":1630999,"op_sys":"Unspecified","priority":"P3","creation_time":"2020-04-17T15:40:19Z","last_change_time":"2022-03-08T18:34:18Z","summary":"webRequest overhead for data: urls from about:newtab","severity":"S4","status":"NEW","keywords":["perf:frontend","perf:startup"]},{"component":"General","id":1631927,"priority":"P3","op_sys":"Unspecified","last_change_time":"2022-03-09T16:28:55Z","creation_time":"2020-04-21T20:25:52Z","keywords":["perf:startup"],"status":"NEW","severity":"--","summary":"Investigate merging small files loaded during startup into one file"},{"id":1633566,"component":"General","priority":"P3","op_sys":"All","last_change_time":"2022-04-09T13:12:12Z","creation_time":"2020-04-27T20:49:57Z","keywords":["perf","perf:responsiveness"],"status":"NEW","severity":"--","summary":"Audit BrowserGlue.dispose for things that can likely be skipped at shutdown"},{"last_change_time":"2022-03-28T19:21:24Z","creation_time":"2020-04-28T22:29:02Z","keywords":["perf:startup"],"summary":"600ms CreateFile on update.test on reference hardware during startup","severity":"--","status":"NEW","id":1633921,"component":"Application Update","priority":"P3","op_sys":"Unspecified"},{"summary":"Defer xulstore persistence until after startup","severity":"--","status":"NEW","keywords":["perf:startup"],"creation_time":"2020-04-28T23:08:28Z","last_change_time":"2022-03-09T16:30:24Z","op_sys":"Unspecified","priority":"--","component":"Startup and Profile System","id":1633930},{"severity":"--","summary":"Defer UntrustedModuleProcessor work until later in startup","status":"NEW","keywords":["perf:startup"],"creation_time":"2020-05-11T16:12:58Z","last_change_time":"2022-03-28T19:21:51Z","op_sys":"Unspecified","priority":"--","component":"Startup and Profile System","id":1636996},{"creation_time":"2020-05-14T20:22:45Z","last_change_time":"2023-11-25T23:47:11Z","status":"NEW","severity":"S3","summary":"Allow extension processes to be preallocated","keywords":["perf:resource-use"],"component":"DOM: Navigation","id":1638119,"op_sys":"Unspecified","priority":"P3"},{"op_sys":"Unspecified","priority":"P3","component":"Telemetry","id":1638421,"status":"NEW","severity":"N/A","summary":"Defer mozilla::intl::GetSystemLocales() until later in startup","keywords":["perf:startup"],"creation_time":"2020-05-15T18:19:13Z","last_change_time":"2022-03-09T16:31:09Z"},{"priority":"P3","op_sys":"Unspecified","id":1641696,"component":"Networking","keywords":["perf:pageload"],"severity":"S3","summary":"Firefox takes 50% more time than Microsoft Edge to display first paint of comments in reddit posts","status":"NEW","last_change_time":"2023-03-09T04:40:02Z","creation_time":"2020-05-28T21:05:25Z"},{"status":"NEW","summary":"Stop painting when the window is occluded on Windows","severity":"N/A","keywords":["perf:resource-use","top50"],"creation_time":"2020-06-10T13:56:24Z","last_change_time":"2024-07-23T03:28:07Z","op_sys":"Unspecified","priority":"--","id":1644740,"component":"Graphics"},{"id":1646449,"component":"Performance","op_sys":"Windows","priority":"P2","creation_time":"2020-06-17T17:48:18Z","last_change_time":"2024-04-02T16:14:40Z","summary":"Background tabs stuck loading while CPU is under heavy load","severity":"S3","status":"NEW","keywords":["perf:responsiveness"]},{"component":"Performance","id":1649890,"op_sys":"Unspecified","priority":"P2","creation_time":"2020-07-01T21:38:46Z","last_change_time":"2023-01-27T13:44:47Z","status":"NEW","severity":"--","summary":"High CPU use on Techradar","keywords":["perf:responsiveness"]},{"component":"Session Restore","id":1650250,"op_sys":"Unspecified","priority":"--","creation_time":"2020-07-02T23:11:56Z","last_change_time":"2022-04-01T11:13:08Z","status":"NEW","severity":"--","summary":"Slow startup/high CPU use when restoring Firefox session with about:newtab as active tab in all windows","keywords":["perf:frontend","perf:responsiveness","perf:startup"]},{"id":1650708,"component":"Performance","priority":"P2","op_sys":"Unspecified","last_change_time":"2024-04-08T18:39:31Z","creation_time":"2020-07-06T04:12:46Z","keywords":["perf:pageload"],"status":"NEW","severity":"--","summary":"Firefox takes 50% more time than Chrome to load/reload pages on Boardgamegeek"},{"keywords":["perf:frontend","perf:startup"],"status":"NEW","severity":"N/A","summary":"Evaluate what things should move out of _scheduleArbitrarilyLateIdleTasks()","last_change_time":"2022-03-28T19:22:23Z","creation_time":"2020-07-07T18:32:36Z","priority":"P3","op_sys":"Unspecified","component":"General","id":1651161},{"component":"JavaScript: GC","id":1653088,"op_sys":"Unspecified","priority":"P3","creation_time":"2020-07-15T20:19:35Z","last_change_time":"2024-11-19T15:27:45Z","status":"NEW","severity":"S4","summary":"Performance issue on voice.google.com - Site can hang from seconds to minutes","keywords":["perf:responsiveness"]},{"last_change_time":"2022-03-02T16:39:35Z","creation_time":"2020-07-18T16:39:27Z","keywords":["perf:responsiveness"],"status":"NEW","summary":"WebGL aquarium sample runs at 30 FPS on Google Pixel 2, 60 FPS on WebView/Chromium","severity":"S3","component":"Graphics: CanvasWebGL","id":1653777,"priority":"P2","op_sys":"All"},{"severity":"S3","summary":"Firefox freezes and becomes unusable on react/typescript/eval-source-map project","status":"NEW","keywords":["leave-open","perf:responsiveness"],"creation_time":"2020-07-18T17:04:31Z","last_change_time":"2023-10-09T12:20:20Z","op_sys":"Unspecified","priority":"P3","component":"Debugger","id":1653779},{"id":1656386,"component":"Performance","priority":"P3","op_sys":"Android","last_change_time":"2024-04-08T18:39:46Z","creation_time":"2020-07-30T22:41:20Z","keywords":["perf:pageload"],"summary":"Slow loading of Medium article on Moto G (XT1031)","severity":"S3","status":"NEW"},{"id":1656709,"component":"Graphics: Canvas2D","op_sys":"Unspecified","priority":"P3","creation_time":"2020-08-01T19:42:35Z","last_change_time":"2022-03-02T16:39:47Z","summary":"some games at gamee.com stutter a lot on firefox while it's smooth on chrome","severity":"S3","status":"NEW","keywords":["perf:responsiveness"]},{"severity":"S3","summary":"Janking/stuttering while scrolling on imgur (Celeron N4000) (Geminilake)","status":"NEW","keywords":["perf:responsiveness"],"creation_time":"2020-08-04T18:08:02Z","last_change_time":"2024-07-22T13:08:08Z","op_sys":"Unspecified","priority":"P3","id":1657183,"component":"Graphics"},{"priority":"--","op_sys":"Unspecified","component":"Layout: Columns","id":1659166,"keywords":["perf:pageload","regression","regressionwindow-wanted","reproducible","top50"],"severity":"S3","summary":"Very long reflows on Wikipedia Barack Obama page","status":"NEW","last_change_time":"2023-08-14T15:04:45Z","creation_time":"2020-08-14T18:12:37Z"},{"keywords":["perf:responsiveness"],"status":"NEW","severity":"--","summary":"Heavy janking while doing page up/down on while loading a few tabs in the background","last_change_time":"2022-04-07T16:20:18Z","creation_time":"2020-08-16T19:42:09Z","priority":"P2","op_sys":"Unspecified","id":1659359,"component":"Performance"},{"keywords":["perf:responsiveness"],"status":"NEW","summary":"LinkedIn - high resource use (aka fans go crazy) on MacOS","severity":"--","last_change_time":"2022-04-07T16:20:29Z","creation_time":"2020-08-24T17:30:02Z","priority":"P2","op_sys":"macOS","id":1660838,"component":"Performance"},{"creation_time":"2020-08-25T17:52:00Z","last_change_time":"2022-03-02T16:40:07Z","status":"NEW","summary":"browser and content hangs when zooming map at https://mrosd.maps.arcgis.com/apps/webappviewer/index.html","severity":"S3","keywords":["perf:responsiveness"],"component":"Graphics","id":1661090,"op_sys":"Windows 10","priority":"--"},{"component":"Performance","id":1663768,"priority":"P3","op_sys":"Unspecified","last_change_time":"2024-04-08T18:41:06Z","creation_time":"2020-09-08T20:28:35Z","keywords":["perf:pageload","reproducible"],"severity":"S3","summary":"9to5google article takes 2x as much time to load as Chrome","status":"NEW"},{"id":1664492,"component":"Networking: 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wild","status":"NEW"},{"priority":"P5","op_sys":"Unspecified","id":1670193,"component":"Performance","keywords":["perf:resource-use","top50"],"status":"NEW","summary":"Google Meet high energy impact on macOS 10.15.7","severity":"S4","last_change_time":"2024-07-17T17:29:49Z","creation_time":"2020-10-09T09:09:08Z"},{"id":1671859,"component":"Graphics","priority":"P3","op_sys":"Windows 10","last_change_time":"2022-10-25T15:51:21Z","creation_time":"2020-10-19T01:37:21Z","keywords":["perf:responsiveness"],"summary":"Not responding notification from Firefox (in titlebar) when switching to a background window","severity":"S3","status":"NEW"},{"creation_time":"2020-11-05T22:19:58Z","last_change_time":"2022-04-07T17:23:31Z","summary":"Checkerboarding on scrolling wired.com 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unloading","status":"UNCONFIRMED","last_change_time":"2023-05-08T22:43:51Z","creation_time":"2023-04-30T02:13:08Z"},{"component":"Audio/Video","id":1838205,"priority":"--","op_sys":"Unspecified","last_change_time":"2024-06-28T12:09:32Z","creation_time":"2023-06-13T12:38:04Z","keywords":["perf:resource-use","top50"],"status":"UNCONFIRMED","severity":"--","summary":"Firefox Performance issue"},{"priority":"P3","op_sys":"Unspecified","component":"Storage: Cache API","id":1840725,"keywords":[],"summary":"Ensure Cache API profiler markers allow investigation of problems like: DomCache(?) slowing Youtube loading/browsing","severity":"S3","status":"UNCONFIRMED","last_change_time":"2024-11-25T20:29:54Z","creation_time":"2023-06-27T21:55:16Z"},{"last_change_time":"2024-01-08T23:18:09Z","creation_time":"2023-07-04T14:45:31Z","keywords":["perf:animation","perf:responsiveness","top50"],"status":"UNCONFIRMED","summary":"'tup' cookie causes laggy/janky Google Maps performance when dragging","severity":"--","component":"Performance","id":1841643,"priority":"--","op_sys":"Unspecified"},{"severity":"--","summary":"memory","status":"UNCONFIRMED","keywords":["perf:resource-use","perf:responsiveness"],"creation_time":"2023-08-08T21:57:22Z","last_change_time":"2023-09-07T16:42:18Z","op_sys":"Unspecified","priority":"--","id":1847838,"component":"Performance"},{"component":"Performance","id":1870405,"op_sys":"Android","priority":"P5","creation_time":"2023-12-15T22:43:19Z","last_change_time":"2024-11-08T16:09:07Z","severity":"S4","summary":"Very slow time to first page load when opening Fenix with hundreds of tabs","status":"UNCONFIRMED","keywords":["perf:pageload","perf:responsiveness","perf:startup"]},{"summary":"Ram memory leak","severity":"--","status":"UNCONFIRMED","keywords":["perf:resource-use"],"creation_time":"2024-02-20T23:03:34Z","last_change_time":"2024-10-08T17:34:51Z","op_sys":"Unspecified","priority":"--","id":1881147,"component":"Performance"},{"component":"Performance","id":1891411,"op_sys":"Unspecified","priority":"--","creation_time":"2024-04-15T04:46:16Z","last_change_time":"2024-10-08T17:35:21Z","status":"UNCONFIRMED","summary":"Very high memory usage(95%) by a single website","severity":"--","keywords":[]},{"keywords":[],"status":"UNCONFIRMED","severity":"--","summary":"Firefox takes 100% of one CPU core for each facebook tab opened","last_change_time":"2024-12-26T12:57:13Z","creation_time":"2024-10-03T13:51:14Z","priority":"--","op_sys":"Unspecified","component":"Performance","id":1922534}]}