bugzilla-data-high.json

{"bugs":[{"summary":"Browser UI hang in sqlite3PagerSharedLock during LoginManagerCrypto decryption (via sqlite usage during NSC_DecryptInit for SDR crypto)","component":"Password Manager","creation_time":"2025-05-01T13:52:50Z","severity":"--","id":1963814,"status":"ASSIGNED","op_sys":"All","keywords":[],"last_change_time":"2026-03-07T06:21:30Z","priority":"--"},{"id":1488435,"op_sys":"macOS","status":"NEW","summary":"Significant key input delay when typing on large Google Docs","component":"JavaScript Engine","creation_time":"2018-09-04T14:10:08Z","severity":"N/A","priority":"P3","keywords":[],"last_change_time":"2026-09-04T12:38:11Z"},{"keywords":["perf:responsiveness"],"last_change_time":"2025-07-01T19:28:26Z","priority":"P3","severity":"S3","summary":"OSXDisplay::EnableVsync hangs in CVDisplayLinkCreateWithActiveCGDisplays","component":"Widget: Cocoa","creation_time":"2019-12-10T17:22:25Z","op_sys":"Unspecified","status":"NEW","id":1602842},{"component":"Panning and Zooming","creation_time":"2020-11-16T15:30:13Z","summary":"SendReceiveMouseInputEvent often blocks the main thread of the parent process","severity":"S3","status":"NEW","id":1677509,"op_sys":"Unspecified","last_change_time":"2025-05-28T19:20:30Z","keywords":["perf:responsiveness"],"priority":"--"},{"keywords":["perf:responsiveness"],"last_change_time":"2026-07-27T17:25:32Z","priority":"--","summary":"Lazy font loading can still hang the main thread on Windows","creation_time":"2021-01-26T19:14:50Z","component":"Layout: Text and Fonts","severity":"S3","id":1688951,"status":"NEW","op_sys":"Windows"},{"priority":"P2","keywords":["perf:resource-use","reproducible"],"last_change_time":"2025-11-26T06:43:39Z","id":1771179,"status":"NEW","op_sys":"Unspecified","severity":"S3","summary":"AudioContext power optimizations","creation_time":"2022-05-25T16:56:04Z","component":"Web Audio"},{"status":"NEW","id":1788530,"op_sys":"Unspecified","summary":"Fenix hangs and memory usage jumps on theguardian.com when opening headlines in new tab","component":"Performance","creation_time":"2022-08-31T21:19:22Z","severity":"S2","priority":"P2","keywords":["perf:resource-use","perf:responsiveness","reproducible"],"last_change_time":"2025-03-10T23:42:15Z"},{"priority":"--","last_change_time":"2025-10-30T20:58:10Z","keywords":["webcompat:platform-bug"],"status":"NEW","op_sys":"Android","id":1826576,"severity":"S3","component":"Graphics: WebRender","creation_time":"2023-04-05T14:45:37Z","summary":"CSS filter() with invert() and hue-rotate() results in sluggish scrolling on Wikipedia"},{"keywords":["perf","perf:responsiveness"],"last_change_time":"2026-09-17T23:11:39Z","priority":"P3","severity":"S3","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","creation_time":"2023-08-18T17:52:57Z","component":"Session Restore","id":1849393,"status":"NEW","op_sys":"Unspecified"},{"summary":"Frequent long janks on Android on loading certain pages","component":"Storage: Quota Manager","creation_time":"2024-06-19T11:50:31Z","severity":"S2","status":"NEW","id":1903530,"op_sys":"Unspecified","keywords":[],"last_change_time":"2026-08-13T22:17:37Z","priority":"P2"},{"priority":"P2","last_change_time":"2026-08-27T21:48:12Z","keywords":["webcompat:needs-contact","webcompat:site-report"],"status":"NEW","id":1928948,"op_sys":"Windows 10","creation_time":"2024-11-04T09:34:27Z","component":"Site Reports","summary":"vizzy.io - The browser is slowed down and eventually stops responding","severity":"S2"},{"last_change_time":"2026-07-15T00:10:15Z","keywords":[],"priority":"P1","creation_time":"2025-04-30T12:23:32Z","component":"JavaScript Engine","summary":"ChatGPT on clean Firefox install - \"This page is slowing down Firefox.\"","severity":"S2","id":1963578,"op_sys":"Unspecified","status":"NEW"},{"severity":"S2","component":"Graphics: WebRender","creation_time":"2025-09-16T14:51:59Z","summary":"Slow scrolling performance on particular sites (mastodon)","op_sys":"Android","status":"NEW","id":1988762,"last_change_time":"2026-03-23T19:01:32Z","keywords":[],"priority":"P2"},{"last_change_time":"2026-08-24T17:24:50Z","keywords":["perf:startup"],"priority":"P3","severity":"S2","component":"Performance Engineering","creation_time":"2025-10-22T15:48:12Z","summary":"Fenix cold start applink navigation performance ~800-1100ms slower than warm, hot scenarios, p75 (fcp, lcp)","id":1995805,"op_sys":"Unspecified","status":"NEW"},{"status":"NEW","id":2012760,"op_sys":"Unspecified","severity":"S3","summary":"Jank and freezing on snowplowmap.a2gov.org","component":"Site Reports","creation_time":"2026-01-27T17:26:37Z","priority":"P3","keywords":["leave-open","webcompat:platform-bug","webcompat:site-report","webcompat:sitepatch-applied"],"last_change_time":"2026-05-13T14:31:19Z"},{"severity":"S3","summary":"ContentParent::KillHard janks the main thread","creation_time":"2019-05-10T14:52:25Z","component":"Crash Reporting","status":"REOPENED","op_sys":"Unspecified","id":1550754,"keywords":["perf:responsiveness","perf:startup","reproducible"],"last_change_time":"2026-04-28T09:36:23Z","priority":"--"}]}