bugzilla-data-high.json

{"bugs":[{"creation_time":"2025-05-01T13:52:50Z","summary":"Browser UI hang in sqlite3PagerSharedLock during LoginManagerCrypto decryption (via sqlite usage during NSC_DecryptInit for SDR crypto)","severity":"--","priority":"--","status":"ASSIGNED","op_sys":"All","last_change_time":"2026-03-07T06:21:30Z","component":"Password Manager","keywords":[],"id":1963814},{"creation_time":"2019-12-10T17:22:25Z","summary":"OSXDisplay::EnableVsync hangs in CVDisplayLinkCreateWithActiveCGDisplays","severity":"S3","priority":"P3","status":"NEW","op_sys":"Unspecified","last_change_time":"2025-07-01T19:28:26Z","component":"Widget: Cocoa","id":1602842,"keywords":["perf:responsiveness"]},{"creation_time":"2020-11-16T15:30:13Z","summary":"SendReceiveMouseInputEvent often blocks the main thread of the parent process","severity":"S3","priority":"--","status":"NEW","op_sys":"Unspecified","component":"Panning and Zooming","last_change_time":"2025-05-28T19:20:30Z","id":1677509,"keywords":["perf:responsiveness"]},{"summary":"Lazy font loading can still hang the main thread on Windows","creation_time":"2021-01-26T19:14:50Z","priority":"--","severity":"S3","component":"Layout: Text and Fonts","last_change_time":"2026-02-28T12:23:08Z","op_sys":"Windows","status":"NEW","keywords":["perf:responsiveness"],"id":1688951},{"keywords":["perf:resource-use","reproducible"],"id":1771179,"status":"NEW","op_sys":"Unspecified","last_change_time":"2025-11-26T06:43:39Z","component":"Web Audio","severity":"S3","priority":"P2","creation_time":"2022-05-25T16:56:04Z","summary":"AudioContext power optimizations"},{"summary":"Fenix hangs and memory usage jumps on theguardian.com when opening headlines in new tab","creation_time":"2022-08-31T21:19:22Z","priority":"P2","severity":"S2","last_change_time":"2025-03-10T23:42:15Z","component":"Performance","op_sys":"Unspecified","status":"NEW","id":1788530,"keywords":["perf:resource-use","perf:responsiveness","reproducible"]},{"status":"NEW","op_sys":"Android","last_change_time":"2025-10-30T20:58:10Z","component":"Graphics: WebRender","id":1826576,"keywords":["webcompat:platform-bug"],"creation_time":"2023-04-05T14:45:37Z","summary":"CSS filter() with invert() and hue-rotate() results in sluggish scrolling on Wikipedia","severity":"S3","priority":"--"},{"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","severity":"S3","priority":"P3","status":"NEW","op_sys":"Unspecified","component":"Session Restore","last_change_time":"2026-03-10T16:53:28Z","keywords":["perf","perf:responsiveness"],"id":1849393},{"keywords":[],"id":1903530,"last_change_time":"2026-07-07T14:57:33Z","component":"Storage: Quota Manager","status":"NEW","op_sys":"Unspecified","priority":"P2","severity":"S2","creation_time":"2024-06-19T11:50:31Z","summary":"Frequent long janks on Android on loading certain pages"},{"priority":"P2","severity":"S2","summary":"vizzy.io - The browser is slowed down and eventually stops responding","creation_time":"2024-11-04T09:34:27Z","keywords":["webcompat:needs-contact","webcompat:site-report"],"id":1928948,"component":"Site Reports","last_change_time":"2025-03-20T03:11:36Z","op_sys":"Windows 10","status":"NEW"},{"id":1963578,"keywords":[],"status":"NEW","op_sys":"Unspecified","last_change_time":"2026-07-15T00:10:15Z","component":"JavaScript Engine","severity":"S2","priority":"P1","creation_time":"2025-04-30T12:23:32Z","summary":"ChatGPT on clean Firefox install - \"This page is slowing down Firefox.\""},{"severity":"S3","priority":"P3","creation_time":"2025-06-12T19:54:27Z","summary":"m.facebook.com live site loads 100-200ms slower in Fenix than Chrome","id":1971873,"keywords":["perf:pageload"],"status":"NEW","op_sys":"Android","component":"Performance: Navigation","last_change_time":"2026-06-22T19:43:25Z"},{"op_sys":"Android","status":"NEW","last_change_time":"2026-03-23T19:01:32Z","component":"Graphics: WebRender","keywords":[],"id":1988762,"summary":"Slow scrolling performance on particular sites (mastodon)","creation_time":"2025-09-16T14:51:59Z","severity":"S2","priority":"P2"},{"priority":"P3","severity":"S2","summary":"Fenix cold start applink navigation performance ~800-1100ms slower than warm, hot scenarios, p75 (fcp, lcp)","creation_time":"2025-10-22T15:48:12Z","id":1995805,"keywords":[],"component":"Performance Engineering","last_change_time":"2026-04-29T17:39:53Z","op_sys":"Unspecified","status":"NEW"},{"summary":"Jank and freezing on snowplowmap.a2gov.org","creation_time":"2026-01-27T17:26:37Z","severity":"S3","priority":"P3","op_sys":"Unspecified","status":"NEW","component":"Site Reports","last_change_time":"2026-05-13T14:31:19Z","id":2012760,"keywords":["leave-open","webcompat:platform-bug","webcompat:site-report","webcompat:sitepatch-applied"]},{"id":1550754,"keywords":["perf:responsiveness","perf:startup","reproducible"],"component":"Crash Reporting","last_change_time":"2026-04-28T09:36:23Z","op_sys":"Unspecified","status":"REOPENED","priority":"--","severity":"S3","summary":"ContentParent::KillHard janks the main thread","creation_time":"2019-05-10T14:52:25Z"}]}