Bug: Intermittent JavaScript error: moz-extension://c08edeb6-6df3-47d8-ba4a-a141e54408a4/content/tabswitch-content-process.js, line 17: TypeError: can't access property "getURL", extensionPolicy is null
Status: RESOLVED
Priority: P5
Resolution: INVALID
Created: 2020-07-28 03:13:13+00:00
Resolved: 2020-07-29 13:54:50+00:00

**Filed by:** nbeleuzu [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer.html#?job_id=311226004&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/O5FkfmBlTJSPyX_qJuRd8A/runs/0/artifacts/public/logs/live_backing.log

---

[task 2020-07-28T01:48:04.647Z] 01:48:04     INFO -  TEST-START | tabswitch
[task 2020-07-28T01:48:04.648Z] 01:48:04     INFO -  Initialising browser for tabswitch test...
[task 2020-07-28T01:48:04.648Z] 01:48:04     INFO -  Cloning profile located at /home/cltbld/tasks/task_1595891405/build/tests/talos/talos/base_profile
[task 2020-07-28T01:48:04.648Z] 01:48:04     INFO -  Merging profile: /home/cltbld/tasks/task_1595891405/build/tests/talos/talos/profile_data/base
[task 2020-07-28T01:48:04.648Z] 01:48:04     INFO -  Merging profile: /home/cltbld/tasks/task_1595891405/build/tests/talos/talos/profile_data/common
[task 2020-07-28T01:48:04.648Z] 01:48:04     INFO -  Merging profile: /home/cltbld/tasks/task_1595891405/build/tests/talos/talos/profile_data/perf
[task 2020-07-28T01:48:04.651Z] 01:48:04     INFO -  Installing Add-ons:
[task 2020-07-28T01:48:04.651Z] 01:48:04     INFO -  ['/home/cltbld/tasks/task_1595891405/build/tests/talos/talos/talos-powers', '/home/cltbld/tasks/task_1595891405/build/tests/talos/talos/tests/tabswitch', '/home/cltbld/tasks/task_1595891405/build/tests/talos/talos/pageloader']
[task 2020-07-28T01:48:04.652Z] 01:48:04     INFO -  Installing Webextensions:
[task 2020-07-28T01:48:04.652Z] 01:48:04     INFO -  Application command: /home/cltbld/tasks/task_1595891405/build/application/firefox/firefox http://127.0.0.1:56135/getInfo.html -profile /tmp/tmp8zxlGa/profile
[task 2020-07-28T01:48:04.656Z] 01:48:04     INFO -  TEST-INFO | started process 3968 (/home/cltbld/tasks/task_1595891405/build/application/firefox/firefox http://127.0.0.1:56135/getInfo.html)
[task 2020-07-28T01:48:05.752Z] 01:48:05     INFO -  console.error: SearchCache: "_readCacheFile: Error reading cache file:" (new Error("", "(unknown module)"))
[task 2020-07-28T01:48:05.870Z] 01:48:05     INFO -  __metrics
[task 2020-07-28T01:48:05.870Z] 01:48:05     INFO -  	Screen width/height: 1600/1200
[task 2020-07-28T01:48:05.870Z] 01:48:05     INFO -  	colorDepth: 24
[task 2020-07-28T01:48:05.870Z] 01:48:05     INFO -  	Browser inner width/height: 1280/966
[task 2020-07-28T01:48:05.870Z] 01:48:05     INFO -  __metrics
[task 2020-07-28T01:48:05.926Z] 01:48:05     INFO -  ATTENTION: default value of option force_s3tc_enable overridden by environment.
[task 2020-07-28T01:48:05.926Z] 01:48:05     INFO -  JavaScript warning: resource://gre/modules/Troubleshoot.jsm, line 658: WebGL context was lost.
[task 2020-07-28T01:48:05.926Z] 01:48:05     INFO -  JavaScript warning: resource://gre/modules/Troubleshoot.jsm, line 658: WebGL context was lost.
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[task 2020-07-28T01:48:06.773Z] 01:48:06    ERROR -  JavaScript error: moz-extension://c08edeb6-6df3-47d8-ba4a-a141e54408a4/content/tabswitch-content-process.js, line 17: TypeError: can't access property "getURL", extensionPolicy is null
[task 2020-07-28T01:48:07.019Z] 01:48:07     INFO -  TEST-INFO | 3968: exit 0