Bug: Intermittent [tier 2] browser/base/content/test/tabs/browser_multiselect_tabs_play.js | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2024-03-20 14:16:45+00:00
Resolved: 2024-04-17 12:01:00+00:00

**Filed by:** nfay [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=451447205&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/fvi0H2YTRhGlVd18C3CuKA/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2024-03-20T11:40:51.898Z] 11:40:51     INFO - TEST-PASS | browser/base/content/test/tabs/browser_multiselect_tabs_play.js | tab3 "Play Tab" is hidden - 
[task 2024-03-20T11:40:51.899Z] 11:40:51     INFO - TEST-PASS | browser/base/content/test/tabs/browser_multiselect_tabs_play.js | tab3 "Play Tabs" is hidden - 
[task 2024-03-20T11:40:51.900Z] 11:40:51     INFO - TEST-PASS | browser/base/content/test/tabs/browser_multiselect_tabs_play.js | tab3 is not active media blocked - 
[task 2024-03-20T11:40:51.900Z] 11:40:51     INFO - Leaving test bound testTabContextMenu
[task 2024-03-20T11:40:51.901Z] 11:40:51     INFO - Console message: [JavaScript Error: "TypeError: can't access property "activeMediaBlockStopped", browser is null" {file: "resource://gre/actors/AudioPlaybackParent.sys.mjs" line: 29}]
[task 2024-03-20T11:40:51.901Z] 11:40:51     INFO - receiveMessage@resource://gre/actors/AudioPlaybackParent.sys.mjs:29:9
[task 2024-03-20T11:40:51.901Z] 11:40:51     INFO - JSActor query*observe@resource://gre/actors/AudioPlaybackChild.sys.mjs:17:12
[task 2024-03-20T11:40:51.902Z] 11:40:51     INFO - 
[task 2024-03-20T11:40:51.902Z] 11:40:51     INFO - Console message: [JavaScript Error: "TypeError: can't access property "activeMediaBlockStopped", browser is null" {file: "resource://gre/actors/AudioPlaybackParent.sys.mjs" line: 29}]
[task 2024-03-20T11:40:51.902Z] 11:40:51     INFO - receiveMessage@resource://gre/actors/AudioPlaybackParent.sys.mjs:29:9
[task 2024-03-20T11:40:51.902Z] 11:40:51     INFO - JSActor query*observe@resource://gre/actors/AudioPlaybackChild.sys.mjs:17:12
[task 2024-03-20T11:40:51.902Z] 11:40:51     INFO - 
[task 2024-03-20T11:40:51.904Z] 11:40:51     INFO - Console message: [JavaScript Error: "TypeError: can't access property "activeMediaBlockStopped", browser is null" {file: "resource://gre/actors/AudioPlaybackParent.sys.mjs" line: 29}]
[task 2024-03-20T11:40:51.904Z] 11:40:51     INFO - receiveMessage@resource://gre/actors/AudioPlaybackParent.sys.mjs:29:9
[task 2024-03-20T11:40:51.904Z] 11:40:51     INFO - JSActor query*observe@resource://gre/actors/AudioPlaybackChild.sys.mjs:17:12
[task 2024-03-20T11:40:51.904Z] 11:40:51     INFO - 
[task 2024-03-20T11:40:51.905Z] 11:40:51     INFO - Buffered messages finished
[task 2024-03-20T11:40:51.906Z] 11:40:51     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/tabs/browser_multiselect_tabs_play.js | This test exceeded the timeout threshold. It should be rewritten or split up. If that's not possible, use requestLongerTimeout(N), but only as a last resort. - 
[task 2024-03-20T11:40:51.907Z] 11:40:51     INFO - GECKO(4252) | MEMORY STAT | vsize 2104641MB | vsizeMaxContiguous 65022259MB | residentFast 445MB | heapAllocated 162MB
[task 2024-03-20T11:40:51.907Z] 11:40:51     INFO - TEST-OK | browser/base/content/test/tabs/browser_multiselect_tabs_play.js | took 60937ms
[task 2024-03-20T11:40:51.907Z] 11:40:51     INFO - checking window state
[task 2024-03-20T11:40:51.908Z] 11:40:51     INFO - TEST-START | browser/base/content/test/tabs/browser_multiselect_tabs_reload.js
```