Bug: Intermittent [Tier 2] toolkit/components/thumbnails/test/browser_thumbnails_bg_no_cookies_stored.js | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2023-10-11 13:11:37+00:00
Resolved: 2023-11-08 12:01:46+00:00

**Filed by:** smolnar [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=432113288&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/E9FQyLsqQa63FhCD-6CHew/runs/1/artifacts/public/logs/live_backing.log

---
```
TEST-START | toolkit/components/thumbnails/test/browser_thumbnails_bg_no_cookies_stored.js
[task 2023-10-11T12:52:26.141Z] 12:52:26     INFO - TEST-INFO | started process screenshot
[task 2023-10-11T12:52:26.360Z] 12:52:26     INFO - TEST-INFO | screenshot: exit 0
[task 2023-10-11T12:52:26.368Z] 12:52:26     INFO - Buffered messages logged at 12:52:12
[task 2023-10-11T12:52:26.368Z] 12:52:26     INFO - Entering test bound thumbnails_bg_no_cookies_stored
[task 2023-10-11T12:52:26.369Z] 12:52:26     INFO - TEST-PASS | toolkit/components/thumbnails/test/browser_thumbnails_bg_no_cookies_stored.js | Thumbnail file should not exist before capture. - 
[task 2023-10-11T12:52:26.369Z] 12:52:26     INFO - Buffered messages finished
[task 2023-10-11T12:52:26.371Z] 12:52:26     INFO - TEST-UNEXPECTED-FAIL | toolkit/components/thumbnails/test/browser_thumbnails_bg_no_cookies_stored.js | Thumbnail file should exist after capture. - 
[task 2023-10-11T12:52:26.371Z] 12:52:26     INFO - Stack trace:
[task 2023-10-11T12:52:26.371Z] 12:52:26     INFO - chrome://mochikit/content/browser-test.js:test_ok:1583
[task 2023-10-11T12:52:26.371Z] 12:52:26     INFO - chrome://mochitests/content/browser/toolkit/components/thumbnails/test/browser_thumbnails_bg_no_cookies_stored.js:thumbnails_bg_no_cookies_stored:19
[task 2023-10-11T12:52:26.371Z] 12:52:26     INFO - chrome://mochikit/content/browser-test.js:handleTask:1134
[task 2023-10-11T12:52:26.371Z] 12:52:26     INFO - chrome://mochikit/content/browser-test.js:_runTaskBasedTest:1206
[task 2023-10-11T12:52:26.371Z] 12:52:26     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1348
[task 2023-10-11T12:52:26.371Z] 12:52:26     INFO - chrome://mochikit/content/browser-test.js:nextTest/<:1123
[task 2023-10-11T12:52:26.371Z] 12:52:26     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/<:1058
[task 2023-10-11T12:52:26.372Z] 12:52:26     INFO - Not taking screenshot here: see the one that was previously logged
[task 2023-10-11T12:52:26.374Z] 12:52:26     INFO - TEST-UNEXPECTED-FAIL | toolkit/components/thumbnails/test/browser_thumbnails_bg_no_cookies_stored.js | Uncaught exception in test bound thumbnails_bg_no_cookies_stored - [Exception... "Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [nsIFile.remove]"  nsresult: "0x80520012 (NS_ERROR_FILE_NOT_FOUND)"  location: "JS frame :: chrome://mochitests/content/browser/toolkit/components/thumbnails/test/head.js :: removeThumbnail :: line 106"  data: no]
[task 2023-10-11T12:52:26.374Z] 12:52:26     INFO - Stack trace:
[task 2023-10-11T12:52:26.374Z] 12:52:26     INFO - removeThumbnail@chrome://mochitests/content/browser/toolkit/components/thumbnails/test/head.js:106:8
[task 2023-10-11T12:52:26.374Z] 12:52:26     INFO - thumbnails_bg_no_cookies_stored@chrome://mochitests/content/browser/toolkit/components/thumbnails/test/browser_thumbnails_bg_no_cookies_stored.js:20:18
[task 2023-10-11T12:52:26.374Z] 12:52:26     INFO - async*handleTask@chrome://mochikit/content/browser-test.js:1134:26
[task 2023-10-11T12:52:26.374Z] 12:52:26     INFO - _runTaskBasedTest@chrome://mochikit/content/browser-test.js:1206:18
[task 2023-10-11T12:52:26.375Z] 12:52:26     INFO - Tester_execTest@chrome://mochikit/content/browser-test.js:1348:14
[task 2023-10-11T12:52:26.375Z] 12:52:26     INFO - nextTest/<@chrome://mochikit/content/browser-test.js:1123:14
[task 2023-10-11T12:52:26.375Z] 12:52:26     INFO - SimpleTest.waitForFocus/<@chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:1058:13
[task 2023-10-11T12:52:26.375Z] 12:52:26     INFO - Leaving test bound thumbnails_bg_no_cookies_stored
[task 2023-10-11T12:52:26.375Z] 12:52:26     INFO - GECKO(7572) | MEMORY STAT | vsize 2104405MB | vsizeMaxContiguous 65029580MB | residentFast 326MB | heapAllocated 107MB
[task 2023-10-11T12:52:26.376Z] 12:52:26     INFO - TEST-OK | toolkit/components/thumbnails/test/browser_thumbnails_bg_no_cookies_stored.js | took 13210ms
[task 2023-10-11T12:52:26.377Z] 12:52:26     INFO - checking window state
[task 2023-10-11T12:52:26.377Z] 12:52:26     INFO - TEST-START | toolkit/components/thumbnails/test/browser_thumbnails_bg_no_duplicates.js
```