Bug: Intermittent browser/base/content/test/general/browser_ctrlTab.js | Ctrl+Tab*2 -> Ctrl+W -> Ctrl+Shift+Tab*2 keeps the selected tab -
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2020-03-13 03:36:49+00:00
Resolved: 2023-06-21 12:02:23+00:00

**Filed by:** btara [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer.html#?job_id=292965592&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/S3LEZ5s1SWC5J-iAJTv8_w/runs/0/artifacts/public/logs/live_backing.log

---

```
[task 2020-03-13T01:51:17.994Z] 01:51:17     INFO - TEST-START | browser/base/content/test/general/browser_ctrlTab.js
[task 2020-03-13T01:51:21.647Z] 01:51:21     INFO - TEST-INFO | started process screenshot
[task 2020-03-13T01:51:21.849Z] 01:51:21     INFO - TEST-INFO | screenshot: exit 0
[task 2020-03-13T01:51:21.850Z] 01:51:21     INFO - Buffered messages logged at 01:51:17
[task 2020-03-13T01:51:21.850Z] 01:51:21     INFO - Entering test bound 
[task 2020-03-13T01:51:21.850Z] 01:51:21     INFO - Buffered messages logged at 01:51:18
[task 2020-03-13T01:51:21.851Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | number of open tabs should be 4 - 
[task 2020-03-13T01:51:21.851Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2020-03-13T01:51:21.851Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 4 tabs open, Ctrl+Tab opens the preview panel - 
[task 2020-03-13T01:51:21.852Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Releasing Ctrl closes the preview panel - 
[task 2020-03-13T01:51:21.852Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 4 tabs open and tab 2 selected, Ctrl+Tab*1 goes back to the previously selected tab - 
[task 2020-03-13T01:51:21.852Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2020-03-13T01:51:21.853Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2020-03-13T01:51:21.853Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 4 tabs open, Ctrl+Tab opens the preview panel - 
[task 2020-03-13T01:51:21.854Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Releasing Ctrl closes the preview panel - 
[task 2020-03-13T01:51:21.854Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 4 tabs open and tab 1 selected, Ctrl+Tab*2 goes 2 tabs back in most-recently-selected order - 
[task 2020-03-13T01:51:21.854Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2020-03-13T01:51:21.855Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2020-03-13T01:51:21.855Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2020-03-13T01:51:21.856Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2020-03-13T01:51:21.856Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 4 tabs open, Ctrl+Tab opens the preview panel - 
[task 2020-03-13T01:51:21.856Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Releasing Ctrl closes the preview panel - 
[task 2020-03-13T01:51:21.857Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 4 tabs open and tab 2 selected, Ctrl+Tab*4 goes 0 tabs back in most-recently-selected order - 
[task 2020-03-13T01:51:21.857Z] 01:51:21     INFO - Buffered messages logged at 01:51:19
[task 2020-03-13T01:51:21.857Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Ctrl+Tab -> Ctrl+Shift+Tab keeps the selected tab - 
[task 2020-03-13T01:51:21.858Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Ctrl+Tab -> Ctrl+W removes one tab - 
[task 2020-03-13T01:51:21.858Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Ctrl+Tab -> Ctrl+W removes the selected tab - 
[task 2020-03-13T01:51:21.859Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | number of open tabs should be 3 - 
[task 2020-03-13T01:51:21.859Z] 01:51:21     INFO - Buffered messages logged at 01:51:20
[task 2020-03-13T01:51:21.859Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2020-03-13T01:51:21.859Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2020-03-13T01:51:21.860Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2020-03-13T01:51:21.860Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2020-03-13T01:51:21.860Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2020-03-13T01:51:21.860Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2020-03-13T01:51:21.860Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2020-03-13T01:51:21.860Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 3 tabs open, Ctrl+Tab opens the preview panel - 
[task 2020-03-13T01:51:21.861Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Releasing Ctrl closes the preview panel - 
[task 2020-03-13T01:51:21.861Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 3 tabs open and tab 0 selected, Ctrl+Tab*7 goes back to the previously selected tab - 
[task 2020-03-13T01:51:21.861Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | number of open tabs should be 4 - 
[task 2020-03-13T01:51:21.861Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | number of open tabs should be 3 - 
[task 2020-03-13T01:51:21.862Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | number of open tabs should be 4 - 
[task 2020-03-13T01:51:21.862Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | tab is selected after closing and restoring it - 
[task 2020-03-13T01:51:21.862Z] 01:51:21     INFO - Buffered messages logged at 01:51:21
[task 2020-03-13T01:51:21.862Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Selected tab doesn't change while tabbing - 
[task 2020-03-13T01:51:21.862Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 4 tabs open, Ctrl+Tab opens the preview panel - 
[task 2020-03-13T01:51:21.862Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Releasing Ctrl closes the preview panel - 
[task 2020-03-13T01:51:21.862Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 4 tabs open and tab 3 selected, Ctrl+Tab*1 goes back to the previously selected tab - 
[task 2020-03-13T01:51:21.862Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | number of open tabs should be 4 - 
[task 2020-03-13T01:51:21.862Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Ctrl+Tab*2 -> Ctrl+W removes the second most recently selected tab - 
[task 2020-03-13T01:51:21.862Z] 01:51:21     INFO - Buffered messages finished
[task 2020-03-13T01:51:21.863Z] 01:51:21     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/general/browser_ctrlTab.js | Ctrl+Tab*2 -> Ctrl+W -> Ctrl+Shift+Tab*2 keeps the selected tab - 
[task 2020-03-13T01:51:21.863Z] 01:51:21     INFO - Stack trace:
[task 2020-03-13T01:51:21.863Z] 01:51:21     INFO - chrome://mochikit/content/browser-test.js:test_ok:1292
[task 2020-03-13T01:51:21.863Z] 01:51:21     INFO - chrome://mochitests/content/browser/browser/base/content/test/general/browser_ctrlTab.js:null:112
[task 2020-03-13T01:51:21.863Z] 01:51:21     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest/<:1062
[task 2020-03-13T01:51:21.863Z] 01:51:21     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1097
[task 2020-03-13T01:51:21.863Z] 01:51:21     INFO - chrome://mochikit/content/browser-test.js:nextTest/<:925
[task 2020-03-13T01:51:21.863Z] 01:51:21     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/waitForFocusInner/focusedOrLoaded/<:918
[task 2020-03-13T01:51:21.863Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | number of open tabs should be 2 - 
[task 2020-03-13T01:51:21.863Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 2 tabs open, Ctrl+Tab doesn't open the preview panel - 
[task 2020-03-13T01:51:21.863Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | With 2 tabs open and tab 1 selected, Ctrl+Tab*1 goes back to the previously selected tab - 
[task 2020-03-13T01:51:21.863Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | number of open tabs should be 1 - 
[task 2020-03-13T01:51:21.863Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Ctrl+Tab consumed by the tabbed browser if one tab is open - 
[task 2020-03-13T01:51:21.863Z] 01:51:21     INFO - TEST-PASS | browser/base/content/test/general/browser_ctrlTab.js | Ctrl+Tab doesn't change focus if one tab is open - 
[task 2020-03-13T01:51:21.863Z] 01:51:21     INFO - Leaving test bound 
[task 2020-03-13T01:51:21.864Z] 01:51:21     INFO - GECKO(10960) | MEMORY STAT | vsize 19406456MB | vsizeMaxContiguous 68680775MB | residentFast 1662MB
[task 2020-03-13T01:51:21.864Z] 01:51:21     INFO - TEST-OK | browser/base/content/test/general/browser_ctrlTab.js | took 3836ms
```