bugzilla-data-low.json

{"bugs":[{"creation_time":"2017-02-22T23:15:05Z","summary":"Stop looking up GLContext symbols for every new window","status":"ASSIGNED","id":1341913,"component":"Graphics","op_sys":"Unspecified","priority":"P3","keywords":["perf"],"last_change_time":"2025-04-24T15:29:17Z","severity":"S3"},{"last_change_time":"2025-03-21T02:42:31Z","severity":"S3","keywords":["perf:pageload"],"priority":"P1","op_sys":"Android","component":"Performance: Navigation","status":"ASSIGNED","id":1522282,"creation_time":"2019-01-23T21:52:44Z","summary":"Delayed image loading on low end ARM devices"},{"last_change_time":"2022-10-12T00:08:45Z","severity":"S3","keywords":["perf:startup"],"priority":"P3","op_sys":"Unspecified","component":"Graphics","id":1631949,"status":"ASSIGNED","summary":"Investigate merging shader cache files","creation_time":"2020-04-21T20:52:29Z"},{"creation_time":"2023-05-31T08:02:46Z","summary":"Firefox 113.2.0 at Android 13. Audio and video stutter when using bluetooth output.","id":1835986,"status":"ASSIGNED","component":"Audio/Video: Playback","op_sys":"Android","priority":"P2","keywords":[],"severity":"S3","last_change_time":"2026-04-01T00:29:04Z"},{"summary":"[meta] Text shaping word cache affects performance on several SP3 tests (particularly TipTap)","creation_time":"2026-01-05T20:54:42Z","op_sys":"Unspecified","component":"Graphics: Text","id":2008619,"status":"ASSIGNED","keywords":["meta"],"priority":"--","severity":"S2","last_change_time":"2026-07-02T15:16:13Z"},{"id":486378,"status":"NEW","op_sys":"Windows Vista","component":"Bookmarks & History","summary":"Poor performance using bookmarks menu with large amounts of bookmarks.","creation_time":"2009-04-01T20:00:41Z","severity":"S3","last_change_time":"2023-05-16T02:23:47Z","priority":"P3","keywords":["blocked-ux","perf"]},{"status":"NEW","id":490714,"op_sys":"All","component":"Places","creation_time":"2009-04-29T22:35:30Z","summary":"[meta] Implement an Asynchronous API for opening container query nodes","last_change_time":"2025-03-11T07:58:22Z","severity":"N/A","priority":"P3","keywords":["main-thread-io","meta","perf","perf:frontend","perf:responsiveness"]},{"summary":"{inc} Resizing window is slow for long list with multicol (from \"-moz-column-count: 3\" or \"column-width: 20em;\")","creation_time":"2010-06-29T14:36:04Z","op_sys":"All","component":"Layout: Columns","id":575614,"status":"NEW","keywords":["perf","perf:responsiveness","testcase"],"priority":"--","severity":"S3","last_change_time":"2022-10-10T22:59:55Z"},{"op_sys":"macOS","component":"XPConnect","id":613498,"status":"NEW","summary":"Very slow chrome to content DOM 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up","op_sys":"Linux","component":"PDF Viewer","id":810214,"status":"NEW"},{"keywords":["perf","perf:responsiveness"],"priority":"--","last_change_time":"2023-03-01T12:04:23Z","severity":"S3","creation_time":"2012-12-14T13:46:12Z","summary":"janky Scrolling on smartsheet.com Sheets","component":"CSS Parsing and Computation","op_sys":"Windows 7","status":"NEW","id":821693},{"last_change_time":"2022-11-24T06:34:31Z","severity":"S3","keywords":["perf"],"priority":"--","component":"Graphics: ImageLib","op_sys":"Windows 7","status":"NEW","id":827440,"creation_time":"2013-01-07T19:06:03Z","summary":"nsIconChannel::AsyncOpen can block"},{"status":"NEW","id":827937,"op_sys":"Windows 8","component":"Layout","summary":"Opening huge mercurial long commit page freezing Firefox","creation_time":"2013-01-08T19:17:33Z","last_change_time":"2022-10-29T12:12:42Z","severity":"S3","priority":"--","keywords":["perf"]},{"keywords":["perf:frontend","perf:responsiveness"],"priority":"P3","last_change_time":"2024-08-20T19:28:43Z","severity":"S3","summary":"Firefox should abort on tryserver when executing SQL on the main thread","creation_time":"2013-01-14T22:07:19Z","component":"SQLite and Embedded Database Bindings","op_sys":"All","id":830504,"status":"NEW"},{"summary":"Use IOUtils for gLastOpenDirectory","creation_time":"2013-02-05T02:16:08Z","component":"General","op_sys":"All","status":"NEW","id":837989,"keywords":["main-thread-io","perf:frontend"],"priority":"--","last_change_time":"2023-05-16T02:22:53Z","severity":"S3"},{"component":"Networking: File","op_sys":"macOS","id":862383,"status":"NEW","creation_time":"2013-04-16T15:29:21Z","summary":"nsFileChannel::nsFileChannel causes expensive lstats","last_change_time":"2024-03-27T16:10:09Z","severity":"S3","keywords":["main-thread-io","perf:responsiveness"],"priority":"P3"},{"creation_time":"2013-07-07T15:57:11Z","summary":"nsIOService::NewFileURI is doing main thread IO and causes jank","id":890712,"status":"NEW","op_sys":"All","component":"Networking","priority":"P3","keywords":["main-thread-io","perf","perf:frontend"],"severity":"S3","last_change_time":"2024-04-01T16:26:36Z"},{"severity":"S3","last_change_time":"2023-07-27T07:06:57Z","priority":"--","keywords":["perf"],"id":914595,"status":"NEW","component":"Layout","op_sys":"All","summary":"Polygon.com page scrolling becomes extremely slow after a while","creation_time":"2013-09-10T12:49:00Z"},{"severity":"S3","last_change_time":"2022-10-11T01:07:35Z","priority":"--","keywords":["perf:resource-use"],"id":917090,"status":"NEW","op_sys":"All","component":"General","creation_time":"2013-09-17T02:34:03Z","summary":"Visibility state is not updated when the browser window is 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loop","creation_time":"2016-10-08T00:18:22Z","component":"Layout","op_sys":"Unspecified","id":1308660,"status":"NEW","keywords":["perf","perf:responsiveness"],"priority":"--","last_change_time":"2025-04-16T19:29:34Z","severity":"--"},{"component":"JavaScript Engine","op_sys":"Windows 10","status":"NEW","id":1316864,"summary":"Google Apps extremely slow -- scrolling, updating text, etc -- unusable","creation_time":"2016-11-11T14:41:11Z","severity":"S3","last_change_time":"2022-10-11T18:44:06Z","keywords":["perf"],"priority":"P5"},{"summary":"[meta] Speed and performance of importing bookmarks from JSON or HTML files is awful","creation_time":"2016-11-27T11:13:21Z","component":"Bookmarks & 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hints during syntax parse","status":"NEW","id":1347861,"op_sys":"Unspecified","component":"JavaScript Engine","priority":"P5","keywords":["perf"],"severity":"S3","last_change_time":"2022-10-11T19:06:12Z"},{"id":1348697,"status":"NEW","op_sys":"All","component":"Layout","summary":"Optimize away OverflowAreasProperty more often","creation_time":"2017-03-19T22:26:30Z","severity":"S3","last_change_time":"2023-11-27T10:28:31Z","priority":"--","keywords":["perf"]},{"last_change_time":"2024-04-24T02:40:50Z","severity":"S3","keywords":["perf"],"priority":"P3","op_sys":"All","component":"JavaScript Engine: JIT","status":"NEW","id":1349148,"summary":"Improve performance of megamorphic stubs","creation_time":"2017-03-21T09:28:43Z"},{"last_change_time":"2022-10-11T19:08:05Z","severity":"S3","keywords":["perf"],"priority":"P3","component":"DOM: Service Workers","op_sys":"Unspecified","status":"NEW","id":1350367,"creation_time":"2017-03-24T15:40:46Z","summary":"Make service worker ScriptLoader paths 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