bugzilla-data-high.json

{"bugs":[{"severity":"--","id":1963814,"op_sys":"All","component":"Password Manager","summary":"Browser UI hang in sqlite3PagerSharedLock during LoginManagerCrypto decryption (via sqlite usage during NSC_DecryptInit for SDR crypto)","creation_time":"2025-05-01T13:52:50Z","keywords":[],"priority":"--","status":"ASSIGNED","last_change_time":"2026-03-07T06:21:30Z"},{"id":1602842,"severity":"S3","component":"Widget: Cocoa","op_sys":"Unspecified","creation_time":"2019-12-10T17:22:25Z","summary":"OSXDisplay::EnableVsync hangs in CVDisplayLinkCreateWithActiveCGDisplays","priority":"P3","keywords":["perf:responsiveness"],"last_change_time":"2025-07-01T19:28:26Z","status":"NEW"},{"id":1677509,"severity":"S3","creation_time":"2020-11-16T15:30:13Z","summary":"SendReceiveMouseInputEvent often blocks the main thread of the parent process","component":"Panning and Zooming","op_sys":"Unspecified","last_change_time":"2025-05-28T19:20:30Z","status":"NEW","keywords":["perf:responsiveness"],"priority":"--"},{"id":1688951,"severity":"S3","component":"Layout: Text and Fonts","op_sys":"Windows","creation_time":"2021-01-26T19:14:50Z","summary":"Lazy font loading can still hang the main thread on Windows","keywords":["perf:responsiveness"],"priority":"--","last_change_time":"2026-02-28T12:23:08Z","status":"NEW"},{"summary":"[Meta] investigate performance issues on Reddit.","creation_time":"2021-01-28T16:03:57Z","op_sys":"Unspecified","component":"Performance: General","severity":"--","id":1689392,"status":"NEW","last_change_time":"2025-03-11T08:41:57Z","keywords":["meta"],"priority":"--"},{"severity":"S3","id":1771179,"summary":"AudioContext power optimizations","creation_time":"2022-05-25T16:56:04Z","op_sys":"Unspecified","component":"Web Audio","status":"NEW","last_change_time":"2025-11-26T06:43:39Z","priority":"P2","keywords":["perf:resource-use","reproducible"]},{"last_change_time":"2025-03-10T23:42:15Z","status":"NEW","keywords":["perf:resource-use","perf:responsiveness","reproducible"],"priority":"P2","creation_time":"2022-08-31T21:19:22Z","summary":"Fenix hangs and memory usage jumps on theguardian.com when opening headlines in new tab","component":"Performance","op_sys":"Unspecified","id":1788530,"severity":"S2"},{"last_change_time":"2025-10-30T20:58:10Z","status":"NEW","keywords":["webcompat:platform-bug"],"priority":"--","id":1826576,"severity":"S3","creation_time":"2023-04-05T14:45:37Z","summary":"CSS filter() with invert() and hue-rotate() results in sluggish scrolling on Wikipedia","component":"Graphics: WebRender","op_sys":"Android"},{"id":1849393,"severity":"S3","creation_time":"2023-08-18T17:52:57Z","summary":"Firefox regularly hangs for over half a second in SessionWriter.sys.mjs calling IOUtils.writeJSON serializing a massive JS object when saving tab state","component":"Session Restore","op_sys":"Unspecified","last_change_time":"2026-03-10T16:53:28Z","status":"NEW","priority":"P3","keywords":["perf","perf:responsiveness"]},{"creation_time":"2024-06-19T11:50:31Z","summary":"Frequent long janks on Android on loading certain pages","component":"Storage: Quota Manager","op_sys":"Unspecified","id":1903530,"severity":"S2","last_change_time":"2026-03-10T13:09:47Z","status":"NEW","keywords":[],"priority":"P2"},{"status":"NEW","last_change_time":"2025-03-20T03:11:36Z","keywords":["webcompat:needs-contact","webcompat:site-report"],"priority":"P2","summary":"vizzy.io - The browser is slowed down and eventually stops responding","creation_time":"2024-11-04T09:34:27Z","op_sys":"Windows 10","component":"Site Reports","severity":"S2","id":1928948},{"component":"JavaScript Engine","op_sys":"Unspecified","creation_time":"2025-04-30T12:23:32Z","summary":"ChatGPT on clean Firefox install - \"This page is slowing down Firefox.\"","id":1963578,"severity":"S2","keywords":[],"priority":"P1","last_change_time":"2026-02-25T19:39:41Z","status":"NEW"},{"status":"NEW","last_change_time":"2025-07-04T18:23:19Z","keywords":["perf:pageload"],"priority":"P3","summary":"m.facebook.com live site loads 100-200ms slower in Fenix than Chrome","creation_time":"2025-06-12T19:54:27Z","op_sys":"Android","component":"Performance: Navigation","severity":"S3","id":1971873},{"keywords":[],"priority":"P2","last_change_time":"2026-03-23T19:01:32Z","status":"NEW","component":"Graphics: WebRender","op_sys":"Android","creation_time":"2025-09-16T14:51:59Z","summary":"Slow scrolling performance on particular sites (mastodon)","id":1988762,"severity":"S2"},{"keywords":[],"priority":"P3","status":"NEW","last_change_time":"2025-11-19T22:29:16Z","op_sys":"Unspecified","component":"Performance Engineering","summary":"Fenix cold start applink navigation performance ~1500ms slower than warm, hot scenarios, p75","creation_time":"2025-10-22T15:48:12Z","severity":"S2","id":1995805},{"status":"NEW","last_change_time":"2026-03-13T20:09:45Z","priority":"--","keywords":[],"severity":"S2","id":2012760,"summary":"Jank and freezing on snowplowmap.a2gov.org","creation_time":"2026-01-27T17:26:37Z","op_sys":"Unspecified","component":"Layout"},{"priority":"--","keywords":["perf:responsiveness","perf:startup","reproducible"],"last_change_time":"2026-02-11T20:34:10Z","status":"REOPENED","component":"Crash Reporting","op_sys":"Unspecified","creation_time":"2019-05-10T14:52:25Z","summary":"ContentParent::KillHard janks the main thread","id":1550754,"severity":"S3"}]}