bugzilla-data-low.json

{"bugs":[{"id":1522282,"last_change_time":"2023-02-22T21:45:14Z","keywords":["perf:pageload"],"severity":"S3","priority":"P1","op_sys":"Android","status":"ASSIGNED","summary":"Delayed image loading on low end ARM devices","component":"Performance","creation_time":"2019-01-23T21:52:44Z"},{"keywords":["perf:startup"],"last_change_time":"2022-10-12T00:08:45Z","id":1631949,"severity":"S3","priority":"P3","creation_time":"2020-04-21T20:52:29Z","summary":"Investigate merging shader cache files","status":"ASSIGNED","component":"Graphics","op_sys":"Unspecified"},{"creation_time":"2023-07-27T16:40:28Z","op_sys":"Unspecified","component":"JavaScript Engine","status":"ASSIGNED","summary":"Google blog page loads very slowly and often fails to fully load","priority":"P3","severity":"S2","keywords":["webcompat:blocked","webcompat:platform-bug","webcompat:site-report"],"id":1845775,"last_change_time":"2024-12-12T23:01:08Z"},{"severity":"S3","keywords":["blocked-ux","perf"],"id":486378,"last_change_time":"2023-05-16T02:23:47Z","creation_time":"2009-04-01T20:00:41Z","op_sys":"Windows Vista","component":"Bookmarks & History","summary":"Poor performance using bookmarks menu with large amounts of bookmarks.","status":"NEW","priority":"P3"},{"priority":"P3","creation_time":"2009-04-29T22:35:30Z","summary":"[meta] Implement an Asynchronous API for opening container query nodes","status":"NEW","component":"Places","op_sys":"All","keywords":["main-thread-io","meta","perf","perf:frontend","perf:responsiveness"],"last_change_time":"2024-03-22T08:26:57Z","id":490714,"severity":"N/A"},{"priority":"--","component":"Layout: Columns","status":"NEW","summary":"{inc} Resizing window is slow for long list with multicol (from \"-moz-column-count: 3\" or \"column-width: 20em;\")","op_sys":"All","creation_time":"2010-06-29T14:36:04Z","last_change_time":"2022-10-10T22:59:55Z","id":575614,"keywords":["perf","perf:responsiveness","testcase"],"severity":"S3"},{"last_change_time":"2024-12-09T16:19:44Z","id":613498,"keywords":["perf","perf:pageload"],"severity":"S3","priority":"--","summary":"Very slow chrome to content DOM access","status":"NEW","component":"XPConnect","op_sys":"macOS","creation_time":"2010-11-19T15:34:28Z"},{"priority":"P3","op_sys":"Linux","status":"NEW","component":"Widget","summary":"throttle animation in completely obscured windows (virtual desktop, minimised, hidden behind other fullscreened windows)","creation_time":"2011-03-31T18:37:55Z","id":646937,"last_change_time":"2022-10-10T23:24:13Z","keywords":["perf","perf:resource-use"],"severity":"S3"},{"keywords":["perf","perf:responsiveness"],"id":661590,"last_change_time":"2023-12-04T16:12:25Z","severity":"S3","priority":"P3","creation_time":"2011-06-02T18:09:59Z","op_sys":"All","component":"Places","summary":"Repeated calls to location.hash = \"#foo\" cause large amounts of disk activity","status":"NEW"},{"severity":"S3","id":711924,"last_change_time":"2024-04-08T16:58:41Z","keywords":["perf","perf:resource-use"],"op_sys":"All","status":"NEW","component":"Graphics: WebRender","summary":"Compositing/present still hapens when the only changing parts are out of the viewport","creation_time":"2011-12-19T09:05:20Z","priority":"--"},{"priority":"--","summary":"IE10 Test Drive: ParticleAcceleration Canvas 2D demo is slow","status":"NEW","component":"Graphics: Canvas2D","op_sys":"All","creation_time":"2012-06-03T03:18:54Z","last_change_time":"2024-04-05T11:37:58Z","id":760888,"keywords":["perf"],"severity":"S3"},{"creation_time":"2012-10-19T21:25:22Z","op_sys":"All","status":"NEW","summary":"We appear to be copying large data URIs over and over in nsSimpleURI.","component":"Networking","priority":"P3","severity":"S3","keywords":["perf:resource-use"],"id":803709,"last_change_time":"2023-06-05T16:31:57Z"},{"severity":"S3","keywords":["perf:responsiveness"],"id":810214,"last_change_time":"2023-06-23T03:10:06Z","creation_time":"2012-11-09T08:29:30Z","op_sys":"Linux","status":"NEW","component":"PDF Viewer","summary":"Processing http://lib.tkk.fi/Dipl/2002/urn007413.pdf is slow, and its text layer is all messed up","priority":"P3"},{"priority":"--","creation_time":"2012-12-14T13:46:12Z","status":"NEW","summary":"janky Scrolling on smartsheet.com Sheets","component":"CSS Parsing and Computation","op_sys":"Windows 7","keywords":["perf","perf:responsiveness"],"last_change_time":"2023-03-01T12:04:23Z","id":821693,"severity":"S3"},{"id":827440,"last_change_time":"2022-11-24T06:34:31Z","keywords":["perf"],"severity":"S3","priority":"--","op_sys":"Windows 7","summary":"nsIconChannel::AsyncOpen can block","component":"Graphics: ImageLib","status":"NEW","creation_time":"2013-01-07T19:06:03Z"},{"id":827937,"last_change_time":"2022-10-29T12:12:42Z","keywords":["perf"],"severity":"S3","priority":"--","op_sys":"Windows 8","component":"Layout","summary":"Opening huge mercurial long commit page freezing Firefox","status":"NEW","creation_time":"2013-01-08T19:17:33Z"},{"severity":"S3","keywords":["perf:frontend","perf:responsiveness"],"last_change_time":"2024-08-20T19:28:43Z","id":830504,"creation_time":"2013-01-14T22:07:19Z","summary":"Firefox should abort on tryserver when executing SQL on the main thread","component":"SQLite and Embedded Database Bindings","status":"NEW","op_sys":"All","priority":"P3"},{"priority":"--","op_sys":"All","summary":"Use IOUtils for gLastOpenDirectory","component":"General","status":"NEW","creation_time":"2013-02-05T02:16:08Z","id":837989,"last_change_time":"2023-05-16T02:22:53Z","keywords":["main-thread-io","perf:frontend"],"severity":"S3"},{"status":"NEW","summary":"nsFileChannel::nsFileChannel causes expensive lstats","component":"Networking: File","op_sys":"macOS","creation_time":"2013-04-16T15:29:21Z","priority":"P3","severity":"S3","last_change_time":"2024-03-27T16:10:09Z","id":862383,"keywords":["main-thread-io","perf:responsiveness"]},{"id":890712,"last_change_time":"2024-04-01T16:26:36Z","keywords":["main-thread-io","perf","perf:frontend"],"severity":"S3","priority":"P3","op_sys":"All","component":"Networking","status":"NEW","summary":"nsIOService::NewFileURI is doing main thread IO and causes jank","creation_time":"2013-07-07T15:57:11Z"},{"priority":"--","op_sys":"All","status":"NEW","component":"Layout","summary":"Polygon.com page scrolling becomes extremely slow after a while","creation_time":"2013-09-10T12:49:00Z","id":914595,"last_change_time":"2023-07-27T07:06:57Z","keywords":["perf"],"severity":"S3"},{"op_sys":"All","component":"General","status":"NEW","summary":"Visibility state is not updated when the browser window is obscured or on another workspace","creation_time":"2013-09-17T02:34:03Z","priority":"--","severity":"S3","id":917090,"last_change_time":"2022-10-11T01:07:35Z","keywords":["perf:resource-use"]},{"severity":"S3","id":984690,"last_change_time":"2022-10-24T12:16:02Z","keywords":["perf"],"op_sys":"Linux","status":"NEW","summary":"Optimize GetRootPresContext() to avoid going through the viewmanager / view tree","component":"Layout","creation_time":"2014-03-18T00:14:52Z","priority":"--"},{"priority":"--","summary":"Preload panel contents on hover of toolbar button","status":"NEW","component":"Toolbars and Customization","op_sys":"All","creation_time":"2014-06-10T10:02:00Z","last_change_time":"2023-07-19T04:52:40Z","id":1023152,"keywords":["perf:frontend"],"severity":"S3"},{"priority":"P3","summary":"Make bookmarks toolbar view use async openContainer","component":"Places","status":"NEW","op_sys":"All","creation_time":"2014-08-02T09:50:40Z","last_change_time":"2023-05-11T18:04:55Z","id":1047817,"keywords":["perf:frontend"],"severity":"S3"},{"last_change_time":"2022-10-11T15:57:30Z","id":1097376,"keywords":["perf"],"severity":"S3","priority":"--","status":"NEW","component":"JavaScript Engine","summary":"Poor performance in Ember app Discourse","op_sys":"Android","creation_time":"2014-11-12T00:22:19Z"},{"severity":"S3","last_change_time":"2024-09-23T19:34:25Z","id":1118086,"keywords":["multiprocess","perf","perf:responsiveness","testcase"],"status":"NEW","component":"Layout: Form Controls","summary":"[e10s] There is a delay for about 1 seconds to display <select> drop-down list with 1600+ items","op_sys":"All","creation_time":"2015-01-06T01:55:10Z","priority":"P5"},{"op_sys":"Windows 8.1","summary":"[Meta] Move JS parsing off of main thread and enable incremental parsing","component":"JavaScript Engine","status":"NEW","creation_time":"2015-04-15T23:32:29Z","priority":"--","severity":"S3","id":1154987,"last_change_time":"2023-10-11T11:00:04Z","keywords":["meta","perf"]},{"id":1155307,"last_change_time":"2024-04-02T23:00:44Z","keywords":["perf:animation","perf:responsiveness","reproducible"],"severity":"S3","priority":"--","op_sys":"All","component":"Graphics: WebRender","status":"NEW","summary":"Very laggy panning and zooming of map on Orbis website","creation_time":"2015-04-16T18:22:07Z"},{"severity":"S3","id":1162665,"last_change_time":"2023-08-29T16:48:48Z","keywords":[],"op_sys":"Unspecified","status":"NEW","component":"JavaScript: GC","summary":"ES6 Map performance for large numbers of elements is deficient","creation_time":"2015-05-07T18:46:57Z","priority":"--"},{"priority":"--","op_sys":"Unspecified","summary":"2D canvas+HTML/CSS animation demo site broken on Firefox, works great on Chrome","component":"DOM: Animation","status":"NEW","creation_time":"2015-10-10T00:31:34Z","id":1213513,"last_change_time":"2023-02-19T05:13:03Z","keywords":["perf:responsiveness"],"severity":"S3"},{"severity":"S3","id":1217748,"last_change_time":"2024-09-22T12:08:26Z","keywords":[],"op_sys":"All","summary":"On/Off opacity changes shouldn't create active layers","status":"NEW","component":"Layout","creation_time":"2015-10-23T09:20:20Z","priority":"--"},{"severity":"S3","keywords":["perf"],"last_change_time":"2022-10-11T17:46:56Z","id":1222086,"creation_time":"2015-11-05T17:44:28Z","component":"JavaScript Engine","summary":"Block JavaScript parser thread when source code characters are not 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x2go","status":"NEW","op_sys":"Linux","creation_time":"2016-06-29T13:06:59Z","last_change_time":"2022-12-08T15:45:06Z","id":1283089,"keywords":["perf:responsiveness","regression"],"severity":"S3"},{"component":"Layout","summary":"Try to tick refresh driver during html parsing","status":"NEW","op_sys":"Unspecified","creation_time":"2016-08-12T05:51:58Z","priority":"P3","severity":"S3","last_change_time":"2022-10-11T18:30:52Z","id":1294625,"keywords":["perf"]},{"id":1296161,"last_change_time":"2022-10-11T18:31:41Z","keywords":["perf"],"severity":"S3","priority":"P3","op_sys":"Unspecified","component":"Layout","status":"NEW","summary":"Measure and solve sync reflow for studying gdoc performance.","creation_time":"2016-08-18T03:04:45Z"},{"severity":"S3","keywords":["perf"],"id":1303296,"last_change_time":"2022-10-11T18:35:56Z","creation_time":"2016-09-16T09:55:31Z","op_sys":"All","summary":"Implement Expected Queueing Time (EQT) for Telemetry/Profiler","status":"NEW","component":"DOM: 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Engine","keywords":["perf"],"id":1316864,"last_change_time":"2022-10-11T18:44:06Z","severity":"S3"},{"severity":"--","keywords":["hang","meta","nightly-community","perf:frontend"],"id":1320534,"last_change_time":"2023-05-11T18:07:57Z","creation_time":"2016-11-27T11:13:21Z","op_sys":"All","summary":"[meta] Speed and performance of importing bookmarks from JSON or HTML files is awful","status":"NEW","component":"Bookmarks & History","priority":"P5"},{"priority":"P3","op_sys":"Unspecified","component":"Layout","status":"NEW","summary":"DisplayList building shows signs of poor CPU usage","creation_time":"2017-01-11T03:23:20Z","id":1330187,"last_change_time":"2023-02-07T15:18:45Z","keywords":["perf:resource-use"],"severity":"S3"},{"priority":"P3","component":"Layout","status":"NEW","summary":"Explore using the presshell arena for 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Painting","status":"NEW","op_sys":"Unspecified","creation_time":"2017-03-01T15:26:14Z","priority":"--"},{"priority":"P2","op_sys":"All","component":"JavaScript Engine: JIT","status":"NEW","summary":"Consider compiling Ion IC code less eagerly","creation_time":"2017-03-10T12:17:59Z","id":1346178,"last_change_time":"2022-10-11T19:05:12Z","keywords":["perf"],"severity":"S3"},{"priority":"--","component":"WebVR","status":"NEW","summary":"Replace PVRManager::GetSensorState with lock-free shared memory structure (Eliminating message queue IPC)","op_sys":"Unspecified","creation_time":"2017-03-13T20:32:12Z","last_change_time":"2022-10-11T19:05:40Z","id":1346927,"keywords":["perf"],"severity":"S3"},{"keywords":["perf"],"last_change_time":"2022-10-11T19:06:12Z","id":1347861,"severity":"S3","priority":"P5","creation_time":"2017-03-16T09:28:24Z","summary":"Consider storing hints during syntax parse","component":"JavaScript 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observers","component":"General","op_sys":"Unspecified","creation_time":"2017-03-26T21:54:08Z","priority":"--","severity":"S3","last_change_time":"2022-10-11T19:08:21Z","id":1350749,"keywords":["perf"]},{"id":1351755,"last_change_time":"2023-06-26T13:30:14Z","keywords":["nightly-community","perf","perf:resource-use","power"],"severity":"--","priority":"--","op_sys":"All","summary":"Provide \"Slight/Light/Low power/Battery saving/Battery saver\" mode option","component":"Performance","status":"NEW","creation_time":"2017-03-29T17:44:37Z"},{"summary":"Add Telemetry probes for measuring garbage volume per GC","component":"JavaScript: GC","status":"NEW","op_sys":"Unspecified","creation_time":"2017-03-29T18:30:44Z","priority":"P3","severity":"S3","last_change_time":"2024-12-05T16:28:47Z","id":1351789,"keywords":["perf"]},{"op_sys":"All","status":"NEW","summary":"Consider faster alternatives to PLDHashTable in hot Layout code 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GC","op_sys":"Unspecified","keywords":["meta","perf"],"last_change_time":"2023-05-05T15:21:18Z","id":1352524,"severity":"S3"},{"id":1353384,"last_change_time":"2022-10-11T19:10:17Z","keywords":["perf"],"severity":"S3","priority":"P3","op_sys":"All","component":"JavaScript Engine: JIT","status":"NEW","summary":"Optimize GetName TypeOfNoProperty","creation_time":"2017-04-04T14:54:51Z"},{"severity":"S3","keywords":["perf"],"last_change_time":"2022-10-11T19:11:14Z","id":1354945,"creation_time":"2017-04-09T22:09:43Z","status":"NEW","summary":"Initialize sandbox global properties lazily","component":"XPConnect","op_sys":"Unspecified","priority":"P3"},{"priority":"P3","summary":"Investigate preparing the next tab on mousedown on the tab close button","status":"NEW","component":"Tabbed Browser","op_sys":"Unspecified","creation_time":"2017-04-11T13:02:53Z","last_change_time":"2023-07-19T04:59:14Z","id":1355456,"keywords":["perf","perf:frontend","perf:responsiveness"],"severity":"S3"},{"severity":"S3","keywords":["perf:frontend"],"last_change_time":"2023-05-16T02:22:12Z","id":1355459,"creation_time":"2017-04-11T13:07:05Z","status":"NEW","summary":"The last window and the task bar item should disappear immediately on shutdown","component":"General","op_sys":"Unspecified","priority":"P4"},{"summary":"Activating the browser window is janky","component":"Widget: Cocoa","status":"NEW","op_sys":"macOS","creation_time":"2017-04-11T13:26:24Z","priority":"P3","severity":"S3","last_change_time":"2022-10-11T19:11:35Z","id":1355466,"keywords":["perf","perf:responsiveness"]},{"priority":"P3","status":"NEW","component":"Autocomplete","summary":"Try avoiding layout flushes in autocomplete::_handleOverflow","op_sys":"Unspecified","creation_time":"2017-04-14T09:29:21Z","last_change_time":"2024-03-22T08:25:52Z","id":1356532,"keywords":["perf:frontend","perf:responsiveness"],"severity":"S3"},{"creation_time":"2017-04-14T16:14:15Z","op_sys":"Unspecified","summary":"Rewrite AppConstants.jsm in C++","component":"General","status":"NEW","priority":"P3","severity":"S3","keywords":["perf:resource-use"],"id":1356594,"last_change_time":"2022-10-11T19:12:20Z"},{"priority":"P3","creation_time":"2017-04-19T11:50:56Z","component":"Tours","status":"NEW","summary":"Uninitializing UITour is expensive","op_sys":"Unspecified","keywords":["perf","perf:frontend","perf:responsiveness"],"last_change_time":"2024-03-22T13:34:58Z","id":1357710,"severity":"S3"},{"priority":"P3","creation_time":"2017-04-19T16:33:44Z","component":"JavaScript: GC","summary":"Investigate source of memory_pressure event in gecko, and whether to repurpose 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back to skia-canvas)","component":"Graphics: Canvas2D","creation_time":"2024-02-29T15:28:41Z"},{"priority":"--","summary":"Ozon.ru eats up RAM","component":"Performance","status":"UNCONFIRMED","op_sys":"Android","creation_time":"2024-04-03T19:07:11Z","last_change_time":"2025-01-06T15:18:31Z","id":1889461,"keywords":["perf:resource-use"],"severity":"--"},{"component":"Performance","summary":"Firefox is using significantly more memory than usual.","status":"UNCONFIRMED","op_sys":"Windows","creation_time":"2024-04-16T00:46:27Z","priority":"--","severity":"S4","last_change_time":"2024-12-02T12:33:24Z","id":1891632,"keywords":[]},{"op_sys":"Unspecified","summary":"Very High Ram usage","status":"UNCONFIRMED","component":"Performance","creation_time":"2024-04-17T13:04:16Z","priority":"--","severity":"--","id":1891979,"last_change_time":"2024-10-08T17:35:09Z","keywords":[]},{"priority":"--","creation_time":"2024-04-30T06:15:07Z","status":"UNCONFIRMED","summary":"Firefox takes up more than 1 GB of RAM even with only 7 tabs open","component":"Graphics","op_sys":"Unspecified","keywords":[],"last_change_time":"2024-06-07T16:45:16Z","id":1894163,"severity":"--"},{"keywords":["perf:resource-use"],"id":1897710,"last_change_time":"2024-10-08T17:35:05Z","severity":"--","priority":"--","creation_time":"2024-05-20T06:28:31Z","op_sys":"Unspecified","status":"UNCONFIRMED","summary":"Firefox utilizing a large amount of RAM (2.5gb with small amount of TABS open)","component":"Performance"},{"creation_time":"2024-08-21T06:38:36Z","status":"UNCONFIRMED","component":"DOM: Events","summary":"tab movement seems a little bit laggy","op_sys":"Windows 11","priority":"--","severity":"--","keywords":[],"last_change_time":"2024-11-24T18:59:10Z","id":1914114},{"op_sys":"Unspecified","component":"Graphics","status":"UNCONFIRMED","summary":"Stuttering when using multiple 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leetcode.com","component":"Performance","status":"UNCONFIRMED","op_sys":"Unspecified","creation_time":"2024-12-04T23:23:04Z","last_change_time":"2025-01-06T10:43:34Z","id":1935272,"keywords":["perf:responsiveness","reproducible"],"severity":"--"},{"creation_time":"2025-01-08T17:38:24Z","op_sys":"Unspecified","summary":"High CPU consumption when using Google Meet","status":"UNCONFIRMED","component":"Performance","priority":"--","severity":"--","keywords":[],"id":1940522,"last_change_time":"2025-01-10T12:20:14Z"}]}