bugzilla-data-high.json

{"bugs":[{"last_change_time":"2026-03-07T06:21:30Z","id":1963814,"creation_time":"2025-05-01T13:52:50Z","keywords":[],"summary":"Browser UI hang in sqlite3PagerSharedLock during LoginManagerCrypto decryption (via sqlite usage during NSC_DecryptInit for SDR crypto)","severity":"--","status":"ASSIGNED","op_sys":"All","priority":"--","component":"Password Manager"},{"component":"JavaScript Engine","severity":"S3","status":"NEW","summary":"Significant key input delay when typing on large Google Docs","op_sys":"macOS","priority":"P3","last_change_time":"2026-08-21T18:24:36Z","id":1488435,"keywords":[],"creation_time":"2018-09-04T14:10:08Z"},{"component":"Widget: Cocoa","last_change_time":"2025-07-01T19:28:26Z","id":1602842,"keywords":["perf:responsiveness"],"creation_time":"2019-12-10T17:22:25Z","severity":"S3","status":"NEW","summary":"OSXDisplay::EnableVsync hangs in CVDisplayLinkCreateWithActiveCGDisplays","priority":"P3","op_sys":"Unspecified"},{"priority":"--","op_sys":"Unspecified","severity":"S3","status":"NEW","summary":"SendReceiveMouseInputEvent often blocks the main thread of the parent process","keywords":["perf:responsiveness"],"creation_time":"2020-11-16T15:30:13Z","last_change_time":"2025-05-28T19:20:30Z","id":1677509,"component":"Panning and Zooming"},{"component":"Layout: Text and Fonts","last_change_time":"2026-07-27T17:25:32Z","id":1688951,"creation_time":"2021-01-26T19:14:50Z","keywords":["perf:responsiveness"],"summary":"Lazy font loading can still hang the main thread on Windows","status":"NEW","severity":"S3","priority":"--","op_sys":"Windows"},{"id":1771179,"last_change_time":"2025-11-26T06:43:39Z","keywords":["perf:resource-use","reproducible"],"creation_time":"2022-05-25T16:56:04Z","status":"NEW","severity":"S3","summary":"AudioContext power optimizations","op_sys":"Unspecified","priority":"P2","component":"Web Audio"},{"component":"Performance","status":"NEW","severity":"S2","summary":"Fenix hangs and memory usage jumps on theguardian.com when opening headlines in new tab","op_sys":"Unspecified","priority":"P2","last_change_time":"2025-03-10T23:42:15Z","id":1788530,"keywords":["perf:resource-use","perf:responsiveness","reproducible"],"creation_time":"2022-08-31T21:19:22Z"},{"creation_time":"2023-04-05T14:45:37Z","keywords":["webcompat:platform-bug"],"last_change_time":"2025-10-30T20:58:10Z","id":1826576,"op_sys":"Android","priority":"--","summary":"CSS filter() with invert() and hue-rotate() results in sluggish scrolling on Wikipedia","status":"NEW","severity":"S3","component":"Graphics: WebRender"},{"severity":"S3","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","priority":"P3","op_sys":"Unspecified","last_change_time":"2026-08-20T20:52:46Z","id":1849393,"keywords":["perf","perf:responsiveness"],"creation_time":"2023-08-18T17:52:57Z","component":"Session Restore"},{"component":"Storage: Quota Manager","priority":"P2","op_sys":"Unspecified","severity":"S2","status":"NEW","summary":"Frequent long janks on Android on loading certain pages","keywords":[],"creation_time":"2024-06-19T11:50:31Z","last_change_time":"2026-08-13T22:17:37Z","id":1903530},{"component":"Site Reports","op_sys":"Windows 10","priority":"P2","status":"NEW","severity":"S2","summary":"vizzy.io - The browser is slowed down and eventually stops responding","keywords":["webcompat:needs-contact","webcompat:site-report"],"creation_time":"2024-11-04T09:34:27Z","id":1928948,"last_change_time":"2025-03-20T03:11:36Z"},{"op_sys":"Unspecified","priority":"P1","severity":"S2","status":"NEW","summary":"ChatGPT on clean Firefox install - \"This page is slowing down Firefox.\"","keywords":[],"creation_time":"2025-04-30T12:23:32Z","last_change_time":"2026-07-15T00:10:15Z","id":1963578,"component":"JavaScript Engine"},{"component":"Graphics: WebRender","id":1988762,"last_change_time":"2026-03-23T19:01:32Z","keywords":[],"creation_time":"2025-09-16T14:51:59Z","status":"NEW","severity":"S2","summary":"Slow scrolling performance on particular sites (mastodon)","op_sys":"Android","priority":"P2"},{"component":"Performance Engineering","status":"NEW","severity":"S2","summary":"Fenix cold start applink navigation performance ~800-1100ms slower than warm, hot scenarios, p75 (fcp, lcp)","op_sys":"Unspecified","priority":"P3","last_change_time":"2026-08-13T22:17:38Z","id":1995805,"keywords":[],"creation_time":"2025-10-22T15:48:12Z"},{"id":2012760,"last_change_time":"2026-05-13T14:31:19Z","keywords":["leave-open","webcompat:platform-bug","webcompat:site-report","webcompat:sitepatch-applied"],"creation_time":"2026-01-27T17:26:37Z","severity":"S3","status":"NEW","summary":"Jank and freezing on snowplowmap.a2gov.org","op_sys":"Unspecified","priority":"P3","component":"Site Reports"},{"component":"Crash Reporting","summary":"ContentParent::KillHard janks the main thread","severity":"S3","status":"REOPENED","op_sys":"Unspecified","priority":"--","id":1550754,"last_change_time":"2026-04-28T09:36:23Z","creation_time":"2019-05-10T14:52:25Z","keywords":["perf:responsiveness","perf:startup","reproducible"]}]}