bugzilla-data-high.json

{"bugs":[{"id":1963814,"keywords":[],"last_change_time":"2026-03-07T06:21:30Z","status":"ASSIGNED","summary":"Browser UI hang in sqlite3PagerSharedLock during LoginManagerCrypto decryption (via sqlite usage during NSC_DecryptInit for SDR crypto)","op_sys":"All","component":"Password Manager","severity":"--","creation_time":"2025-05-01T13:52:50Z","priority":"--"},{"op_sys":"Unspecified","summary":"OSXDisplay::EnableVsync hangs in CVDisplayLinkCreateWithActiveCGDisplays","last_change_time":"2025-07-01T19:28:26Z","status":"NEW","keywords":["perf:responsiveness"],"id":1602842,"priority":"P3","severity":"S3","creation_time":"2019-12-10T17:22:25Z","component":"Widget: Cocoa"},{"component":"Panning and Zooming","creation_time":"2020-11-16T15:30:13Z","severity":"S3","priority":"--","status":"NEW","last_change_time":"2025-05-28T19:20:30Z","keywords":["perf:responsiveness"],"id":1677509,"op_sys":"Unspecified","summary":"SendReceiveMouseInputEvent often blocks the main thread of the parent process"},{"priority":"--","creation_time":"2021-01-26T19:14:50Z","severity":"S3","component":"Layout: Text and Fonts","op_sys":"Windows","summary":"Lazy font loading can still hang the main thread on Windows","status":"NEW","last_change_time":"2026-02-28T12:23:08Z","keywords":["perf:responsiveness"],"id":1688951},{"priority":"--","component":"Performance: General","severity":"--","creation_time":"2021-01-28T16:03:57Z","op_sys":"Unspecified","summary":"[Meta] investigate performance issues on Reddit.","keywords":["meta"],"status":"NEW","last_change_time":"2025-03-11T08:41:57Z","id":1689392},{"summary":"AudioContext power optimizations","op_sys":"Unspecified","id":1771179,"keywords":["perf:resource-use","reproducible"],"status":"NEW","last_change_time":"2025-11-26T06:43:39Z","priority":"P2","creation_time":"2022-05-25T16:56:04Z","severity":"S3","component":"Web Audio"},{"severity":"S2","creation_time":"2022-08-31T21:19:22Z","component":"Performance","priority":"P2","status":"NEW","last_change_time":"2025-03-10T23:42:15Z","keywords":["perf:resource-use","perf:responsiveness","reproducible"],"id":1788530,"summary":"Fenix hangs and memory usage jumps on theguardian.com when opening headlines in new tab","op_sys":"Unspecified"},{"summary":"CSS filter() with invert() and hue-rotate() results in sluggish scrolling on Wikipedia","op_sys":"Android","keywords":["webcompat:platform-bug"],"status":"NEW","last_change_time":"2025-10-30T20:58:10Z","id":1826576,"priority":"--","creation_time":"2023-04-05T14:45:37Z","severity":"S3","component":"Graphics: WebRender"},{"creation_time":"2023-08-18T17:52:57Z","severity":"S3","component":"Session Restore","priority":"P3","id":1849393,"last_change_time":"2026-03-10T16:53:28Z","keywords":["perf","perf:responsiveness"],"status":"NEW","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","op_sys":"Unspecified"},{"component":"Storage: Quota Manager","creation_time":"2024-06-19T11:50:31Z","severity":"S2","priority":"P2","status":"NEW","keywords":[],"last_change_time":"2026-04-15T14:32:25Z","id":1903530,"summary":"Frequent long janks on Android on loading certain pages","op_sys":"Unspecified"},{"op_sys":"Windows 10","summary":"vizzy.io - The browser is slowed down and eventually stops responding","id":1928948,"keywords":["webcompat:needs-contact","webcompat:site-report"],"last_change_time":"2025-03-20T03:11:36Z","status":"NEW","priority":"P2","component":"Site Reports","creation_time":"2024-11-04T09:34:27Z","severity":"S2"},{"priority":"P1","component":"JavaScript Engine","severity":"S2","creation_time":"2025-04-30T12:23:32Z","op_sys":"Unspecified","summary":"ChatGPT on clean Firefox install - \"This page is slowing down Firefox.\"","keywords":[],"status":"NEW","last_change_time":"2026-02-25T19:39:41Z","id":1963578},{"component":"Performance: Navigation","creation_time":"2025-06-12T19:54:27Z","severity":"S3","priority":"P3","last_change_time":"2025-07-04T18:23:19Z","status":"NEW","keywords":["perf:pageload"],"id":1971873,"op_sys":"Android","summary":"m.facebook.com live site loads 100-200ms slower in Fenix than Chrome"},{"summary":"Slow scrolling performance on particular sites (mastodon)","op_sys":"Android","last_change_time":"2026-03-23T19:01:32Z","status":"NEW","keywords":[],"id":1988762,"priority":"P2","severity":"S2","creation_time":"2025-09-16T14:51:59Z","component":"Graphics: WebRender"},{"summary":"Fenix cold start applink navigation performance ~800-1100ms slower than warm, hot scenarios, p75 (fcp, lcp)","op_sys":"Unspecified","id":1995805,"last_change_time":"2026-04-29T17:39:53Z","status":"NEW","keywords":[],"priority":"P3","component":"Performance Engineering","severity":"S2","creation_time":"2025-10-22T15:48:12Z"},{"component":"Site Reports","severity":"S3","creation_time":"2026-01-27T17:26:37Z","priority":"P3","keywords":["leave-open","webcompat:platform-bug","webcompat:site-report","webcompat:sitepatch-applied"],"status":"NEW","last_change_time":"2026-05-13T14:31:19Z","id":2012760,"summary":"Jank and freezing on snowplowmap.a2gov.org","op_sys":"Unspecified"},{"id":1550754,"last_change_time":"2026-04-28T09:36:23Z","keywords":["perf:responsiveness","perf:startup","reproducible"],"status":"REOPENED","summary":"ContentParent::KillHard janks the main thread","op_sys":"Unspecified","severity":"S3","creation_time":"2019-05-10T14:52:25Z","component":"Crash Reporting","priority":"--"}]}