bugzilla-data-high.json

{"bugs":[{"last_change_time":"2026-03-07T06:21:30Z","op_sys":"All","id":1963814,"summary":"Browser UI hang in sqlite3PagerSharedLock during LoginManagerCrypto decryption (via sqlite usage during NSC_DecryptInit for SDR crypto)","keywords":[],"component":"Password Manager","severity":"--","priority":"--","status":"ASSIGNED","creation_time":"2025-05-01T13:52:50Z"},{"summary":"Significant key input delay when typing on large Google Docs","keywords":[],"id":1488435,"op_sys":"macOS","last_change_time":"2026-08-21T18:24:36Z","component":"JavaScript Engine","severity":"S3","priority":"P3","creation_time":"2018-09-04T14:10:08Z","status":"NEW"},{"severity":"S3","priority":"P3","status":"NEW","creation_time":"2019-12-10T17:22:25Z","op_sys":"Unspecified","last_change_time":"2025-07-01T19:28:26Z","id":1602842,"keywords":["perf:responsiveness"],"summary":"OSXDisplay::EnableVsync hangs in CVDisplayLinkCreateWithActiveCGDisplays","component":"Widget: Cocoa"},{"priority":"--","severity":"S3","status":"NEW","creation_time":"2020-11-16T15:30:13Z","id":1677509,"last_change_time":"2025-05-28T19:20:30Z","op_sys":"Unspecified","keywords":["perf:responsiveness"],"summary":"SendReceiveMouseInputEvent often blocks the main thread of the parent process","component":"Panning and Zooming"},{"priority":"--","severity":"S3","status":"NEW","creation_time":"2021-01-26T19:14:50Z","op_sys":"Windows","id":1688951,"last_change_time":"2026-07-27T17:25:32Z","keywords":["perf:responsiveness"],"summary":"Lazy font loading can still hang the main thread on Windows","component":"Layout: Text and Fonts"},{"component":"Web Audio","id":1771179,"op_sys":"Unspecified","last_change_time":"2025-11-26T06:43:39Z","keywords":["perf:resource-use","reproducible"],"summary":"AudioContext power optimizations","status":"NEW","creation_time":"2022-05-25T16:56:04Z","priority":"P2","severity":"S3"},{"status":"NEW","creation_time":"2022-08-31T21:19:22Z","priority":"P2","severity":"S2","component":"Performance","last_change_time":"2025-03-10T23:42:15Z","id":1788530,"op_sys":"Unspecified","summary":"Fenix hangs and memory usage jumps on theguardian.com when opening headlines in new tab","keywords":["perf:resource-use","perf:responsiveness","reproducible"]},{"component":"Graphics: WebRender","id":1826576,"last_change_time":"2025-10-30T20:58:10Z","op_sys":"Android","keywords":["webcompat:platform-bug"],"summary":"CSS filter() with invert() and hue-rotate() results in sluggish scrolling on Wikipedia","status":"NEW","creation_time":"2023-04-05T14:45:37Z","severity":"S3","priority":"--"},{"component":"Session Restore","keywords":["perf","perf:responsiveness"],"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","id":1849393,"op_sys":"Unspecified","last_change_time":"2026-08-20T20:52:46Z","creation_time":"2023-08-18T17:52:57Z","status":"NEW","severity":"S3","priority":"P3"},{"keywords":[],"summary":"Frequent long janks on Android on loading certain pages","op_sys":"Unspecified","last_change_time":"2026-08-13T22:17:37Z","id":1903530,"component":"Storage: Quota Manager","priority":"P2","severity":"S2","creation_time":"2024-06-19T11:50:31Z","status":"NEW"},{"last_change_time":"2025-03-20T03:11:36Z","op_sys":"Windows 10","id":1928948,"keywords":["webcompat:needs-contact","webcompat:site-report"],"summary":"vizzy.io - The browser is slowed down and eventually stops responding","component":"Site Reports","severity":"S2","priority":"P2","status":"NEW","creation_time":"2024-11-04T09:34:27Z"},{"summary":"ChatGPT on clean Firefox install - \"This page is slowing down Firefox.\"","keywords":[],"id":1963578,"op_sys":"Unspecified","last_change_time":"2026-07-15T00:10:15Z","component":"JavaScript Engine","priority":"P1","severity":"S2","creation_time":"2025-04-30T12:23:32Z","status":"NEW"},{"last_change_time":"2026-03-23T19:01:32Z","op_sys":"Android","id":1988762,"keywords":[],"summary":"Slow scrolling performance on particular sites (mastodon)","component":"Graphics: WebRender","severity":"S2","priority":"P2","status":"NEW","creation_time":"2025-09-16T14:51:59Z"},{"component":"Performance Engineering","keywords":["perf:startup"],"summary":"Fenix cold start applink navigation performance ~800-1100ms slower than warm, hot scenarios, p75 (fcp, lcp)","id":1995805,"op_sys":"Unspecified","last_change_time":"2026-08-24T17:24:50Z","creation_time":"2025-10-22T15:48:12Z","status":"NEW","priority":"P3","severity":"S2"},{"creation_time":"2026-01-27T17:26:37Z","status":"NEW","priority":"P3","severity":"S3","component":"Site Reports","keywords":["leave-open","webcompat:platform-bug","webcompat:site-report","webcompat:sitepatch-applied"],"summary":"Jank and freezing on snowplowmap.a2gov.org","last_change_time":"2026-05-13T14:31:19Z","op_sys":"Unspecified","id":2012760},{"severity":"S3","priority":"--","creation_time":"2019-05-10T14:52:25Z","status":"REOPENED","keywords":["perf:responsiveness","perf:startup","reproducible"],"summary":"ContentParent::KillHard janks the main thread","id":1550754,"op_sys":"Unspecified","last_change_time":"2026-04-28T09:36:23Z","component":"Crash Reporting"}]}