bugzilla-data-medium.json

{"bugs":[{"status":"ASSIGNED","component":"Graphics: WebRender","keywords":["perf:responsiveness"],"id":1626816,"op_sys":"All","last_change_time":"2025-10-06T13:53:06Z","severity":"S3","priority":"P3","summary":"WebRender program cache / shader initialization blocks the main thread via the sync IPC message PWebRenderBridge::EnsureConnected (25ms-40ms startup penalty)","creation_time":"2020-04-02T00:26:08Z"},{"priority":"P3","summary":"js::jit::GenerateCode spends a lot of time in malloc lock contention","creation_time":"2024-10-01T18:43:40Z","op_sys":"Android","last_change_time":"2025-01-06T15:03:33Z","severity":"S3","id":1922073,"status":"ASSIGNED","component":"JavaScript Engine: JIT","keywords":[]},{"id":216418,"component":"Layout","status":"NEW","keywords":["perf"],"creation_time":"2003-08-17T03:26:28Z","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","priority":"--","last_change_time":"2023-05-15T19:04:00Z","op_sys":"All","severity":"S3"},{"id":304683,"keywords":["perf:pageload","perf:resource-use","perf:responsiveness","reproducible"],"status":"NEW","component":"Graphics: ImageLib","priority":"--","summary":"firefox struggles with large doxygen html file in nsLocalFile::GetLastModifiedTime (from imgLoader)","creation_time":"2005-08-15T08:01:49Z","severity":"S3","op_sys":"All","last_change_time":"2024-09-04T13:05:12Z"},{"last_change_time":"2023-08-23T01:33:13Z","op_sys":"All","severity":"S3","summary":"Write a new off-the-main-thread IO driver for expat","creation_time":"2011-04-19T08:20:35Z","priority":"--","component":"XML","status":"NEW","keywords":["perf:pageload"],"id":651049},{"status":"NEW","component":"Graphics: ImageLib","keywords":["perf:pageload","perf:resource-use","reproducible","testcase-wanted"],"id":1027106,"op_sys":"All","last_change_time":"2025-02-09T16:16:28Z","severity":"S3","priority":"--","creation_time":"2014-06-18T15:22:41Z","summary":"Make ImageLib share cached imgRequests for the same SVG document even if the URI has a different ref/hash"},{"op_sys":"All","last_change_time":"2024-06-04T18:21:25Z","severity":"S3","priority":"P2","creation_time":"2014-07-13T16:33:17Z","summary":"Website causes Firefox to completely hang because same script file is getting loaded over and over again","status":"NEW","component":"New Tab Page","keywords":["csectype-dos","hang","memory-leak","perf:responsiveness","reproducible","testcase"],"id":1037984},{"keywords":["perf:resource-use"],"component":"DOM: Core & HTML","status":"NEW","id":1107626,"severity":"S4","last_change_time":"2025-03-27T16:27:51Z","op_sys":"All","summary":"Evaluate aggregating timers to reduce the number of times we wake up the CPU for serving them","creation_time":"2014-12-04T20:16:51Z","priority":"P5"},{"priority":"P3","summary":"Thumbnail generation should have a time limit","creation_time":"2015-05-07T20:09:26Z","op_sys":"All","last_change_time":"2023-07-24T12:16:09Z","severity":"--","id":1162698,"status":"NEW","component":"New Tab Page","keywords":["memory-footprint","memory-leak","perf","perf:responsiveness","top-memory-leak"]},{"priority":"--","creation_time":"2016-09-21T13:54:15Z","summary":"Session Restore generates sustained large disk traffic [meta]","op_sys":"All","last_change_time":"2025-12-04T06:38:11Z","severity":"S3","id":1304389,"status":"NEW","component":"Session Restore","keywords":["meta","perf:animation","perf:resource-use","perf:responsiveness","reproducible"]},{"priority":"P3","creation_time":"2017-03-18T03:14:39Z","summary":"Consider using FramePropertyTable less in layout","op_sys":"Unspecified","last_change_time":"2022-10-11T19:06:39Z","severity":"S3","id":1348469,"status":"NEW","component":"Layout","keywords":["perf","perf:pageload"]},{"status":"NEW","component":"Application Update","keywords":["perf","perf:responsiveness"],"id":1349809,"op_sys":"macOS","last_change_time":"2022-10-11T19:07:40Z","severity":"S3","priority":"P3","summary":"getElevationRequired janks the parent process by doing IO on the main thread","creation_time":"2017-03-23T02:16:50Z"},{"keywords":["perf:responsiveness"],"component":"Bookmarks & History","status":"NEW","id":1363131,"severity":"S3","last_change_time":"2024-04-03T13:53:20Z","op_sys":"Unspecified","summary":"Showing the bookmarks panel is too slow the first time","creation_time":"2017-05-08T18:35:31Z","priority":"P3"},{"keywords":["meta","perf","perf:responsiveness","perf:startup"],"status":"NEW","component":"XPCOM","id":1363586,"severity":"S3","op_sys":"Unspecified","last_change_time":"2025-03-24T22:09:33Z","priority":"--","summary":"[meta] Creating the XPCOM system info service shouldn't be expensive","creation_time":"2017-05-10T02:24:10Z"},{"severity":"S3","last_change_time":"2022-10-11T19:17:24Z","op_sys":"Unspecified","creation_time":"2017-05-11T14:44:03Z","summary":"Defer mozilla::widget::AudioSession::Start() until later in startup","priority":"P3","keywords":["perf","perf:responsiveness","perf:startup"],"component":"Widget: Win32","status":"NEW","id":1364091},{"id":1370516,"keywords":["perf:responsiveness","perf:startup"],"component":"Security: PSM","status":"NEW","creation_time":"2017-06-06T12:51:51Z","summary":"NSS should be initialized off main thread","priority":"P2","severity":"S3","last_change_time":"2023-12-11T13:17:23Z","op_sys":"Unspecified"},{"creation_time":"2017-06-19T08:52:46Z","summary":"Add-on icons should be in the navbar by first paint","priority":"P3","last_change_time":"2022-10-11T19:24:38Z","op_sys":"Unspecified","severity":"S3","id":1374216,"component":"Toolbars and Customization","status":"NEW","keywords":["perf:frontend","perf:startup","regression","regressionwindow-wanted"]},{"component":"JavaScript Engine","status":"NEW","keywords":[],"id":1388538,"last_change_time":"2024-12-06T16:27:49Z","op_sys":"Unspecified","severity":"S3","creation_time":"2017-08-08T21:56:17Z","summary":"Add ICs for slotful own-prop Xray property access (property on the expando)","priority":"P3"},{"severity":"S3","op_sys":"macOS","last_change_time":"2022-10-11T19:42:53Z","priority":"P3","summary":"Using software video decoders (include VP9) ramps up computer fans on Macbook.","creation_time":"2017-09-18T08:13:45Z","keywords":["perf:resource-use"],"status":"NEW","component":"Audio/Video: Playback","id":1400787},{"keywords":["perf:responsiveness"],"component":"CSS Parsing and Computation","status":"NEW","id":1406622,"severity":"S3","last_change_time":"2022-10-11T19:47:36Z","op_sys":"Unspecified","creation_time":"2017-10-07T10:11:51Z","summary":"stylo: use invalidation framework to handle restyles needed in response to content insertion/removal","priority":"P2"},{"id":1425887,"component":"Tabbed Browser","status":"NEW","keywords":["perf","perf:frontend"],"creation_time":"2017-12-18T17:47:35Z","summary":"With tab animations disabled, closing current tab to switch to another will visibly show a blank page with spinner (causing flashing)","priority":"P3","last_change_time":"2025-11-24T20:54:46Z","op_sys":"All","severity":"S3"},{"summary":"RexBench is slower than Chrome/WebKit","creation_time":"2018-01-09T05:47:13Z","priority":"P2","severity":"S3","last_change_time":"2025-06-11T11:06:28Z","op_sys":"Unspecified","id":1428972,"keywords":["perf"],"component":"JavaScript Engine","status":"NEW"},{"id":1439892,"component":"New Tab Page","status":"NEW","keywords":["perf:frontend","perf:startup"],"summary":"Activity stream initialization causes jank after receiving the sessionstore-windows-restored notification","creation_time":"2018-02-21T13:15:04Z","priority":"P3","last_change_time":"2024-04-03T03:06:41Z","op_sys":"Unspecified","severity":"S3"},{"keywords":["perf","perf:responsiveness"],"component":"CSS Parsing and Computation","status":"NEW","id":1443066,"severity":"S3","last_change_time":"2022-10-11T21:21:11Z","op_sys":"Unspecified","creation_time":"2018-03-05T04:29:30Z","summary":"Try to understand why we're slower than Chrome on StyleBench \"Positional pseudo classes : Adding leaf elements: Async\" (& similar \"Removing\" measurement)","priority":"P3"},{"creation_time":"2018-03-15T16:29:05Z","summary":"The first startup after an update does main thread I/O to update.status several times","priority":"P3","last_change_time":"2022-10-11T21:23:37Z","op_sys":"Unspecified","severity":"S3","id":1446012,"component":"Application Update","status":"NEW","keywords":["perf:startup"]},{"severity":"N/A","op_sys":"All","last_change_time":"2025-04-23T10:03:41Z","priority":"P5","creation_time":"2018-04-17T08:42:34Z","summary":"Optimize resume point creation in IonBuilder","keywords":["perf"],"status":"NEW","component":"JavaScript Engine: JIT","id":1454586},{"keywords":["perf","perf:responsiveness","perf:startup"],"component":"Networking: JAR","status":"NEW","id":1456626,"severity":"S3","last_change_time":"2025-04-15T20:34:51Z","op_sys":"Unspecified","creation_time":"2018-04-24T20:33:58Z","summary":"nsJARChannel::asyncOpen can still block","priority":"P3"},{"severity":"S3","last_change_time":"2025-03-11T07:19:40Z","op_sys":"Windows 7","creation_time":"2018-04-24T21:08:43Z","summary":"Checkerboarding while scrollbar-dragging due to slow display list build on specific page with table layout","priority":"P3","keywords":["nightly-community","perf","perf:responsiveness","regression"],"component":"Web Painting","status":"NEW","id":1456638},{"severity":"S3","op_sys":"Windows 10","last_change_time":"2024-02-08T23:49:09Z","priority":"P3","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)","creation_time":"2018-04-25T19:10:14Z","keywords":["perf","perf:responsiveness"],"status":"NEW","component":"Layout: Block and Inline","id":1456964},{"severity":"S3","last_change_time":"2023-09-21T15:50:42Z","op_sys":"Unspecified","creation_time":"2018-04-26T19:55:49Z","summary":"TabChild::RecvRenderLayers often results in two consecutive paints","priority":"P2","keywords":["perf:resource-use"],"component":"DOM: Content Processes","status":"NEW","id":1457276},{"id":1458634,"keywords":["perf","perf:resource-use","perf:responsiveness"],"component":"Bookmarks & History","status":"NEW","creation_time":"2018-05-02T18:01:37Z","summary":"\"forget about this site\" in \"show all history\" blocks the main thread","priority":"P3","severity":"S3","last_change_time":"2023-05-22T15:45:39Z","op_sys":"Unspecified"},{"id":1468246,"keywords":["perf:pageload"],"status":"NEW","component":"Layout","priority":"P3","creation_time":"2018-06-11T20:32:18Z","summary":"High variability in performance testing with large images","severity":"S3","op_sys":"Unspecified","last_change_time":"2022-10-11T21:41:13Z"},{"op_sys":"All","last_change_time":"2022-10-11T21:43:40Z","severity":"S3","priority":"P3","summary":"High cpu/gpu usage and hangs on page-http://telegra.ph/Telegram-X-03-26 & other pages","creation_time":"2018-06-25T21:14:25Z","status":"NEW","component":"Audio/Video: Playback","keywords":["hang","perf:resource-use","power"],"id":1471029},{"last_change_time":"2022-10-11T21:47:20Z","op_sys":"Windows","severity":"S3","summary":"Optimize Windows sandbox policy construction","creation_time":"2018-07-16T20:44:07Z","priority":"P2","component":"Security: Process Sandboxing","status":"NEW","keywords":["perf:responsiveness","perf:startup"],"id":1476101},{"summary":"style.foo = bar changes are slow","creation_time":"2018-07-27T10:44:44Z","priority":"P3","severity":"S3","last_change_time":"2022-10-11T21:49:50Z","op_sys":"Unspecified","id":1478953,"keywords":["perf:responsiveness"],"component":"CSS Parsing and Computation","status":"NEW"},{"component":"Audio/Video: Playback","status":"NEW","keywords":["perf:resource-use"],"id":1481967,"last_change_time":"2025-03-06T17:21:40Z","op_sys":"All","severity":"S3","creation_time":"2018-08-08T22:40:31Z","summary":"100% cpu usage and high memory use on page with multiple embedded videos","priority":"P3"},{"creation_time":"2018-08-14T19:58:58Z","summary":"Try and re-attach NewObject stubs after GC","priority":"P3","severity":"S3","last_change_time":"2024-09-21T13:28:21Z","op_sys":"Unspecified","id":1483345,"keywords":[],"component":"JavaScript Engine: JIT","status":"NEW"},{"severity":"S3","last_change_time":"2025-01-29T17:31:27Z","op_sys":"macOS","creation_time":"2018-09-04T14:10:08Z","summary":"Significant key input delay when typing on large Google Docs","priority":"P3","keywords":[],"component":"JavaScript Engine","status":"NEW","id":1488435},{"keywords":["meta"],"component":"JavaScript Engine: JIT","status":"NEW","id":1490847,"severity":"N/A","last_change_time":"2025-04-23T10:05:12Z","op_sys":"Unspecified","creation_time":"2018-09-12T22:40:00Z","summary":"[meta] Long-standing Ion Compilation Time Issues","priority":"P5"},{"op_sys":"Unspecified","last_change_time":"2025-11-20T08:28:19Z","severity":"N/A","priority":"P2","creation_time":"2018-09-12T22:46:57Z","summary":"Off-Main-Thread Baseline Compilation","status":"NEW","component":"JavaScript Engine: JIT","keywords":[],"id":1490849},{"last_change_time":"2025-03-06T17:21:31Z","op_sys":"Unspecified","severity":"S3","summary":"Horrible performance on runningworld due to media decoding","creation_time":"2018-10-03T15:02:45Z","priority":"P3","component":"Audio/Video: Playback","status":"NEW","keywords":["perf:resource-use"],"id":1496096},{"priority":"P3","creation_time":"2018-10-12T07:38:21Z","summary":"hubs.mozilla.com frame rate with an empty scene is too slow in FxR on Oculus Go","op_sys":"Android","last_change_time":"2024-05-03T15:18:39Z","severity":"S3","id":1498485,"status":"NEW","component":"JavaScript Engine","keywords":["perf:responsiveness"]},{"id":1502334,"status":"NEW","component":"CSS Parsing and Computation","keywords":["perf:animation","regression","reproducible","top50"],"priority":"--","summary":"Reddit content is no longer displayed when scrolled (checkerboarding), with long restyles","creation_time":"2018-10-26T12:54:03Z","op_sys":"All","last_change_time":"2025-03-11T08:54:07Z","severity":"S3"},{"summary":"twitch.tv site loads slow compared to Chrome","creation_time":"2018-11-06T22:12:10Z","priority":"P2","last_change_time":"2022-10-11T22:10:59Z","op_sys":"Android","severity":"S3","id":1505192,"component":"JavaScript Engine","status":"NEW","keywords":["perf:pageload"]},{"summary":"Getting a list of audio devices on about:support is super slow sometimes","creation_time":"2018-11-07T17:49:31Z","priority":"P3","severity":"S3","last_change_time":"2025-03-06T17:04:43Z","op_sys":"Unspecified","id":1505483,"keywords":["perf:responsiveness"],"component":"Audio/Video","status":"NEW"},{"component":"Graphics","status":"NEW","keywords":["main-thread-io","perf:responsiveness"],"id":1505533,"last_change_time":"2024-03-20T20:46:07Z","op_sys":"Unspecified","severity":"S3","summary":"graphics data gathering (and/or canvas webgl context initialization) from about:support is slow","creation_time":"2018-11-07T19:32:59Z","priority":"P5"},{"creation_time":"2018-11-13T04:54:48Z","summary":"Do an optimization to not flush animations which are running on the compositor in various places where we call FlushPendingNotification","priority":"P3","severity":"S3","last_change_time":"2022-10-11T22:12:27Z","op_sys":"Unspecified","id":1506765,"keywords":["perf:responsiveness"],"component":"DOM: Animation","status":"NEW"},{"priority":"P5","summary":"Try persisting chromemargin and brighttext attributes on browser windows","creation_time":"2018-11-13T21:07:29Z","op_sys":"Unspecified","last_change_time":"2022-10-11T22:12:38Z","severity":"S3","id":1506962,"status":"NEW","component":"Tabbed Browser","keywords":["perf:frontend","perf:responsiveness","perf:startup"]},{"id":1508765,"status":"NEW","component":"PDF Viewer","keywords":["parity-chrome","perf","perf:animation","perf:pageload","perf:responsiveness","regression","reproducible"],"priority":"P3","creation_time":"2018-11-20T19:36:06Z","summary":"Firefox is very slow to render poster PDF","op_sys":"Unspecified","last_change_time":"2023-07-24T12:22:05Z","severity":"S3"},{"keywords":["perf","perf:pageload"],"component":"DOM: Core & HTML","status":"NEW","id":1509228,"severity":"S3","last_change_time":"2022-10-11T22:14:24Z","op_sys":"Unspecified","summary":"Optimizing nsGlobalWindowOuter::NotifyContentBlockingState() seems to have an impact on pageload","creation_time":"2018-11-22T04:38:51Z","priority":"P3"},{"status":"NEW","component":"JavaScript: GC","keywords":["perf","perf:pageload"],"id":1515414,"op_sys":"Unspecified","last_change_time":"2022-10-11T22:19:55Z","severity":"S3","priority":"P3","summary":"Defer GCs in background tabs/processes during pageload","creation_time":"2018-12-19T19:35:51Z"},{"id":1515473,"component":"Graphics","status":"NEW","keywords":["perf","perf:responsiveness"],"creation_time":"2018-12-19T22:43:20Z","summary":"CPU intensive slideshow on http://thesantaclausparade.com/","priority":"P3","last_change_time":"2024-08-03T20:54:28Z","op_sys":"Unspecified","severity":"S3"},{"id":1515799,"keywords":["meta","perf:frontend","perf:startup"],"status":"NEW","component":"General","priority":"P3","creation_time":"2018-12-20T23:13:35Z","summary":"[meta] reduce impact/overhead of custom element use on startup","severity":"S3","op_sys":"Unspecified","last_change_time":"2023-08-05T01:39:19Z"},{"summary":"Download indicator code should use idle task and/or not load until there are downloads","creation_time":"2018-12-27T14:05:19Z","priority":"P5","severity":"S3","last_change_time":"2022-10-11T22:20:48Z","op_sys":"Unspecified","id":1516525,"keywords":["perf:frontend","perf:startup"],"component":"Downloads Panel","status":"NEW"},{"id":1520729,"keywords":["perf:responsiveness"],"status":"NEW","component":"Layout","priority":"P2","summary":"jetbrains \"upsource\" file-view hangs the browser, when scrolled","creation_time":"2019-01-17T08:50:51Z","severity":"S3","op_sys":"Unspecified","last_change_time":"2022-10-11T22:24:11Z"},{"severity":"S3","op_sys":"All","last_change_time":"2022-10-11T22:25:37Z","priority":"P2","summary":"InitOtherFamilyNamesRunnable can slow down first page load and take > 100ms","creation_time":"2019-01-23T18:40:07Z","keywords":["perf:pageload"],"status":"NEW","component":"Layout: Text and Fonts","id":1522196},{"last_change_time":"2025-03-02T13:58:32Z","op_sys":"All","severity":"S3","creation_time":"2019-01-26T00:23:18Z","summary":"[meta] Performance of \"about:config\"","priority":"P3","component":"Preferences","status":"NEW","keywords":["meta","perf","perf:responsiveness","regression"],"id":1523028},{"component":"Audio/Video: Playback","status":"NEW","keywords":["perf:responsiveness"],"id":1524384,"last_change_time":"2025-03-17T17:28:58Z","op_sys":"macOS","severity":"S3","creation_time":"2019-01-31T20:58:54Z","summary":"Twitch.tv video's (vod) freeze during playback on MacOS","priority":"P3"},{"keywords":["perf:responsiveness"],"component":"Web Painting","status":"NEW","id":1527037,"severity":"S3","last_change_time":"2022-10-11T22:29:04Z","op_sys":"Unspecified","summary":"Scroll jank when mousewheel-scrolling slide thumbnails on Google Docs (with lots of time spent painting & in GetFrameForPoint)","creation_time":"2019-02-11T18:16:31Z","priority":"P2"},{"creation_time":"2019-02-15T16:08:16Z","summary":"[meta] Allow call of AsyncOpen and OnStart/OnStopRequest off the main thread","priority":"P2","severity":"S3","last_change_time":"2025-11-21T13:11:58Z","op_sys":"Unspecified","id":1528285,"keywords":["meta","perf:pageload"],"component":"Networking: HTTP","status":"NEW"},{"keywords":["perf:frontend","perf:startup"],"status":"NEW","component":"Menus","id":1534371,"severity":"S3","op_sys":"Unspecified","last_change_time":"2023-08-05T01:38:55Z","priority":"P3","summary":"Lazy load browser.xul menus","creation_time":"2019-03-11T18:25:07Z"},{"severity":"S3","last_change_time":"2023-02-01T17:22:05Z","op_sys":"macOS","summary":"[10.14.4] Poor battery life on MacBook Pro","creation_time":"2019-03-19T21:20:53Z","priority":"P3","keywords":["perf","perf:resource-use"],"component":"Graphics","status":"NEW","id":1536622},{"id":1536739,"keywords":["perf:responsiveness"],"status":"NEW","component":"General","priority":"P3","summary":"Performance is slow/janky with a full complement of add-ons, restored session, opening discarded tabs","creation_time":"2019-03-20T07:53:47Z","severity":"S3","op_sys":"Unspecified","last_change_time":"2024-04-02T13:41:19Z"},{"status":"NEW","component":"XPCOM","keywords":["perf:resource-use"],"id":1538784,"op_sys":"Unspecified","last_change_time":"2025-03-20T13:08:13Z","severity":"S3","priority":"--","summary":"Set nsThreadPool limits more intelligently","creation_time":"2019-03-25T17:26:55Z"},{"component":"Graphics","status":"NEW","keywords":["perf:responsiveness"],"id":1539266,"last_change_time":"2022-10-11T22:39:22Z","op_sys":"Unspecified","severity":"S3","creation_time":"2019-03-26T20:57:57Z","summary":"Running gfxPlatform::Init in the content process can take a long time","priority":"P3"},{"keywords":["perf:responsiveness"],"component":"Graphics","status":"NEW","id":1540226,"severity":"S3","last_change_time":"2022-10-11T22:40:24Z","op_sys":"Unspecified","creation_time":"2019-03-29T19:18:26Z","summary":"Brief video and audio interruptions on YouTube when tab is focused after it was in the background","priority":"P2"},{"severity":"S3","last_change_time":"2025-08-26T15:54:44Z","op_sys":"Unspecified","creation_time":"2019-04-02T20:18:11Z","summary":"Avoid nsExceptionHandler::SetupExtraData() doing main thread IO super early on startup","priority":"P2","keywords":["main-thread-io","perf:startup"],"component":"Crash Reporting","status":"NEW","id":1541200},{"id":1541491,"keywords":["main-thread-io","perf","perf:startup"],"component":"Startup and Profile System","status":"NEW","creation_time":"2019-04-03T17:10:18Z","summary":"Evaluate whether we can stop using compatibility.ini in the common case where app compat info is in profiles.ini / installs.ini","priority":"P3","severity":"S3","last_change_time":"2024-07-25T20:36:55Z","op_sys":"Unspecified"},{"severity":"S3","op_sys":"Unspecified","last_change_time":"2022-10-11T22:41:40Z","priority":"P3","creation_time":"2019-04-03T17:15:49Z","summary":"Stop writing compatibility.ini piecemeal and on the main thread and on startup","keywords":["main-thread-io","perf","perf:responsiveness","perf:startup"],"status":"NEW","component":"Startup and Profile System","id":1541494},{"component":"Startup and Profile System","status":"NEW","keywords":["main-thread-io","perf","perf:startup"],"id":1541601,"last_change_time":"2025-09-30T14:55:10Z","op_sys":"Unspecified","severity":"S3","summary":"Very very very carefully... remove channel-prefs.js and stop reading it from the main thread early on startup","creation_time":"2019-04-03T21:31:57Z","priority":"--"},{"creation_time":"2019-04-11T17:55:48Z","summary":"[meta] 5+ second delays seen while loading www.allrecipes.com on geckoview_example","priority":"P2","last_change_time":"2025-03-21T02:42:28Z","op_sys":"Unspecified","severity":"S3","id":1543776,"component":"Performance: Navigation","status":"NEW","keywords":["meta","perf:pageload"]},{"id":1544019,"keywords":["main-thread-io","perf","perf:startup"],"component":"XPCOM","status":"NEW","creation_time":"2019-04-12T14:40:08Z","summary":"Consolidate IO for startupCache folder access","priority":"--","severity":"S3","last_change_time":"2023-05-31T19:21:00Z","op_sys":"Unspecified"},{"component":"Startup and Profile System","status":"NEW","keywords":["main-thread-io","perf","perf:responsiveness","perf:startup"],"id":1544504,"last_change_time":"2022-10-11T22:44:28Z","op_sys":"Unspecified","severity":"S3","summary":"Investigate compressing omni.ja's (with lz4)","creation_time":"2019-04-15T18:19:33Z","priority":"P3"},{"priority":"P5","creation_time":"2019-04-17T15:06:25Z","summary":"Update service tries to migrate things from \"old 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