bugzilla-data-untriaged.json

{"bugs":[{"id":1771902,"severity":"S3","summary":"Compositor CSS animations are not paused in fully occluded windows","op_sys":"Unspecified","priority":"--","component":"Layout: Images, Video, and HTML Frames","last_change_time":"2026-05-05T06:26:46Z","keywords":["perf:resource-use","power","top50"],"status":"NEW","creation_time":"2022-05-31T12:05:20Z"},{"id":1777875,"severity":"S2","summary":"Lenovo Privacy Guard with \"Enable this feature when typing passwords\" causing excessive UI responsiveness delays (jank)","op_sys":"Windows 11","priority":"--","component":"Disability Access APIs","keywords":["perf"],"last_change_time":"2025-10-08T10:20:41Z","status":"NEW","creation_time":"2022-07-03T18:15:09Z"},{"priority":"--","component":"Performance: General","summary":"Opening reddit posts spends a lot of time on the parent process Part2 (Followup to bug 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memory","op_sys":"Unspecified","severity":"--","id":1946913,"creation_time":"2025-02-08T01:01:15Z","status":"UNCONFIRMED","keywords":[],"last_change_time":"2025-03-31T14:05:44Z"},{"summary":"openstreetmap iD editor - slow zooming","op_sys":"Unspecified","component":"Performance: General","priority":"--","id":1959837,"severity":"S3","status":"NEW","creation_time":"2025-04-10T22:39:57Z","last_change_time":"2025-04-17T15:54:50Z","keywords":[]},{"op_sys":"Unspecified","summary":"high cpu memory youtube","component":"Performance: Memory","priority":"--","id":1964744,"severity":"S3","status":"UNCONFIRMED","creation_time":"2025-05-06T16:45:20Z","keywords":[],"last_change_time":"2025-06-09T15:38:11Z"},{"creation_time":"2025-05-14T18:54:41Z","status":"NEW","keywords":["perf","perf:startup"],"last_change_time":"2026-04-02T10:46:48Z","component":"General","priority":"P2","op_sys":"Unspecified","summary":"JS isn't minified in Fenix release builds","severity":"S4","id":1966492},{"creation_time":"2025-05-20T03:11:41Z","status":"UNCONFIRMED","keywords":[],"last_change_time":"2026-09-01T16:02:18Z","priority":"--","component":"Performance Engineering","summary":"YouTube Subscription page High CPU and RAM usage","op_sys":"Unspecified","severity":"S3","id":1967369},{"keywords":[],"last_change_time":"2025-12-01T12:17:20Z","status":"NEW","creation_time":"2025-05-25T08:19:42Z","id":1968418,"severity":"S3","summary":"Closing a long-running twitch tab hangs browser for minute(s) (GC in recvConduitClosed of Conduit)","op_sys":"Unspecified","component":"General","priority":"P3"},{"creation_time":"2025-09-15T20:07:07Z","status":"UNCONFIRMED","last_change_time":"2026-05-25T10:06:53Z","keywords":[],"priority":"--","component":"Performance","summary":"Tabs in Firefox refresh when multitasking","op_sys":"Android","severity":"--","id":1988608},{"severity":"S3","id":1988776,"priority":"P3","component":"DOM: Core & HTML","summary":"MutationObserver's getReceiverFor is slow when there are a lot of observers","op_sys":"Unspecified","keywords":[],"last_change_time":"2025-09-17T15:30:35Z","creation_time":"2025-09-16T15:36:45Z","status":"NEW"},{"id":1994231,"severity":"S3","op_sys":"Unspecified","summary":"Browser lags with many tabs open in many windows","priority":"P3","component":"Performance","last_change_time":"2026-03-19T16:42:12Z","keywords":[],"status":"UNCONFIRMED","creation_time":"2025-10-14T16:07:36Z"},{"status":"UNCONFIRMED","creation_time":"2026-01-05T15:33:01Z","last_change_time":"2026-01-29T14:34:23Z","keywords":[],"summary":"UI freezes on long React/DOM sessions despite moderate CPU usage (main-thread JS long tasks)","op_sys":"Unspecified","priority":"--","component":"Performance: Responsiveness","id":2008564,"severity":"--"},{"summary":"Choppy/stuttering scrolling with touchpad","op_sys":"Windows 11","priority":"--","component":"Performance: Responsiveness","id":2008927,"severity":"--","status":"UNCONFIRMED","creation_time":"2026-01-07T12:11:59Z","keywords":["perf"],"last_change_time":"2026-05-11T19:19:58Z"},{"keywords":[],"last_change_time":"2026-06-24T12:56:04Z","status":"UNCONFIRMED","creation_time":"2026-03-15T19:27:01Z","id":2023446,"severity":"S3","summary":"video stutter on high reso videos on x.com","op_sys":"Android","component":"Audio/Video","priority":"P3"},{"summary":"https://wisprflow.ai is not fully responsive on 4k full screen","op_sys":"Unspecified","priority":"--","component":"Performance: Responsiveness","id":2041028,"severity":"--","status":"NEW","creation_time":"2026-05-20T16:15:21Z","last_change_time":"2026-05-28T12:20:26Z","keywords":[]},{"priority":"P3","component":"Places","summary":"After running some testcase, the browser was busy for 24seconds on the sqlDB:Places thread.","op_sys":"Unspecified","severity":"S3","id":2041378,"creation_time":"2026-05-21T16:05:31Z","status":"NEW","keywords":["perf"],"last_change_time":"2026-05-25T16:28:10Z"},{"status":"NEW","creation_time":"2026-07-05T12:07:18Z","keywords":["perf"],"last_change_time":"2026-07-27T09:25:19Z","op_sys":"Linux","summary":"High idle CPU usage on freecad-app.com (no visible reason)","priority":"--","component":"CSS Transitions and Animations","id":2052713,"severity":"S3"},{"last_change_time":"2026-07-27T09:36:34Z","keywords":["perf"],"status":"NEW","creation_time":"2026-07-10T13:48:29Z","id":2054069,"severity":"S3","summary":"Hovering outside SVG triggers a SVG repaint","op_sys":"Unspecified","priority":"--","component":"SVG"},{"id":2054822,"severity":"S3","summary":"Crash when Using Interactive Graphics on Gemini","op_sys":"Linux","priority":"P3","component":"DOM: Content Processes","keywords":["crash","hang","perf:animation","perf:resource-use","wayland"],"last_change_time":"2026-07-29T12:23:49Z","status":"UNCONFIRMED","creation_time":"2026-07-14T04:31:25Z"},{"creation_time":"2026-08-06T21:23:36Z","status":"UNCONFIRMED","last_change_time":"2026-09-02T15:34:08Z","keywords":[],"component":"Performance: General","priority":"--","op_sys":"Unspecified","summary":"Infinite scroll websites begin stuttering frequently","severity":"--","id":2061533},{"creation_time":"2026-08-10T09:08:38Z","status":"NEW","last_change_time":"2026-08-25T13:08:38Z","keywords":[],"component":"Performance: Responsiveness","priority":"--","op_sys":"Unspecified","summary":"It takes a long time to render a 3d map canvas in three.js in https://foldingglobes.com/","severity":"--","id":2062165},{"severity":"S3","id":2065457,"component":"Disability Access APIs","priority":"--","op_sys":"Windows 11","summary":"Updating aria-selected while a tabpanel is removed from the DOM destroys ~5,700 accessibles at ~48µs each, blocking the main thread ~280ms per tab switch","keywords":["perf","perf:responsiveness"],"last_change_time":"2026-08-24T11:22:40Z","creation_time":"2026-08-21T11:53:54Z","status":"UNCONFIRMED"}]}