bugzilla-data-high.json

{"bugs":[{"status":"ASSIGNED","severity":"--","last_change_time":"2026-03-07T06:21:30Z","summary":"Browser UI hang in sqlite3PagerSharedLock during LoginManagerCrypto decryption (via sqlite usage during NSC_DecryptInit for SDR crypto)","creation_time":"2025-05-01T13:52:50Z","id":1963814,"op_sys":"All","priority":"--","keywords":[],"component":"Password Manager"},{"op_sys":"Unspecified","id":1602842,"summary":"OSXDisplay::EnableVsync hangs in CVDisplayLinkCreateWithActiveCGDisplays","last_change_time":"2025-07-01T19:28:26Z","creation_time":"2019-12-10T17:22:25Z","severity":"S3","status":"NEW","component":"Widget: Cocoa","keywords":["perf:responsiveness"],"priority":"P3"},{"severity":"S3","status":"NEW","op_sys":"Unspecified","id":1677509,"summary":"SendReceiveMouseInputEvent often blocks the main thread of the parent process","last_change_time":"2025-05-28T19:20:30Z","creation_time":"2020-11-16T15:30:13Z","priority":"--","component":"Panning and Zooming","keywords":["perf:responsiveness"]},{"severity":"S3","status":"NEW","op_sys":"Windows","id":1688951,"creation_time":"2021-01-26T19:14:50Z","last_change_time":"2026-02-28T12:23:08Z","summary":"Lazy font loading can still hang the main thread on Windows","priority":"--","component":"Layout: Text and Fonts","keywords":["perf:responsiveness"]},{"priority":"--","component":"Performance: General","keywords":["meta"],"severity":"--","status":"NEW","op_sys":"Unspecified","id":1689392,"creation_time":"2021-01-28T16:03:57Z","summary":"[Meta] investigate performance issues on Reddit.","last_change_time":"2025-03-11T08:41:57Z"},{"component":"Web Audio","keywords":["perf:resource-use","reproducible"],"priority":"P2","id":1771179,"op_sys":"Unspecified","creation_time":"2022-05-25T16:56:04Z","last_change_time":"2025-11-26T06:43:39Z","summary":"AudioContext power optimizations","status":"NEW","severity":"S3"},{"priority":"P2","keywords":["perf:resource-use","perf:responsiveness","reproducible"],"component":"Performance","severity":"S2","status":"NEW","summary":"Fenix hangs and memory usage jumps on theguardian.com when opening headlines in new tab","creation_time":"2022-08-31T21:19:22Z","last_change_time":"2025-03-10T23:42:15Z","op_sys":"Unspecified","id":1788530},{"priority":"--","keywords":["webcompat:platform-bug"],"component":"Graphics: WebRender","severity":"S3","status":"NEW","creation_time":"2023-04-05T14:45:37Z","last_change_time":"2025-10-30T20:58:10Z","summary":"CSS filter() with invert() and hue-rotate() results in sluggish scrolling on Wikipedia","op_sys":"Android","id":1826576},{"status":"NEW","severity":"S3","id":1849393,"op_sys":"Unspecified","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","last_change_time":"2026-03-10T16:53:28Z","priority":"P3","component":"Session Restore","keywords":["perf","perf:responsiveness"]},{"id":1903530,"op_sys":"Unspecified","summary":"Frequent long janks on Android on loading certain pages","creation_time":"2024-06-19T11:50:31Z","last_change_time":"2026-03-10T13:09:47Z","status":"NEW","severity":"S2","component":"Storage: Quota Manager","keywords":[],"priority":"P2"},{"creation_time":"2024-11-04T09:34:27Z","summary":"vizzy.io - The browser is slowed down and eventually stops responding","last_change_time":"2025-03-20T03:11:36Z","op_sys":"Windows 10","id":1928948,"severity":"S2","status":"NEW","keywords":["webcompat:needs-contact","webcompat:site-report"],"component":"Site Reports","priority":"P2"},{"priority":"P1","keywords":[],"component":"JavaScript Engine","status":"NEW","severity":"S2","creation_time":"2025-04-30T12:23:32Z","last_change_time":"2026-02-25T19:39:41Z","summary":"ChatGPT on clean Firefox install - \"This page is slowing down Firefox.\"","id":1963578,"op_sys":"Unspecified"},{"priority":"P3","keywords":["perf:pageload"],"component":"Performance: Navigation","status":"NEW","severity":"S3","summary":"m.facebook.com live site loads 100-200ms slower in Fenix than Chrome","last_change_time":"2025-07-04T18:23:19Z","creation_time":"2025-06-12T19:54:27Z","id":1971873,"op_sys":"Android"},{"summary":"Slow scrolling performance on particular sites (mastodon)","last_change_time":"2026-01-23T20:06:23Z","creation_time":"2025-09-16T14:51:59Z","op_sys":"Android","id":1988762,"severity":"S2","status":"NEW","keywords":["stalled"],"component":"Graphics: WebRender","priority":"--"},{"last_change_time":"2025-11-19T22:29:16Z","summary":"Fenix cold start applink navigation performance ~1500ms slower than warm, hot scenarios, p75","creation_time":"2025-10-22T15:48:12Z","op_sys":"Unspecified","id":1995805,"severity":"S2","status":"NEW","keywords":[],"component":"Performance Engineering","priority":"P3"},{"op_sys":"Unspecified","id":2012760,"summary":"Jank and freezing on snowplowmap.a2gov.org","creation_time":"2026-01-27T17:26:37Z","last_change_time":"2026-03-13T20:09:45Z","severity":"S2","status":"NEW","component":"Layout","keywords":[],"priority":"--"},{"severity":"S3","status":"REOPENED","creation_time":"2019-05-10T14:52:25Z","summary":"ContentParent::KillHard janks the main thread","last_change_time":"2026-02-11T20:34:10Z","op_sys":"Unspecified","id":1550754,"priority":"--","keywords":["perf:responsiveness","perf:startup","reproducible"],"component":"Crash Reporting"}]}