Bug: Intermittent FATAL ERROR: Non-local network connections are disabled and a connection attempt to ac.duckduckgo.com (52.149.246.39) was made.
Status: RESOLVED
Priority: P5
Resolution: DUPLICATE
Created: 2021-03-11 07:05:06+00:00
Resolved: 2021-03-22 06:04:24+00:00

**Filed by:** abutkovits [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=332801481&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/QxMcrWgJTsiTPDJ5Kn42FQ/runs/0/artifacts/public/logs/live_backing.log

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```
[task 2021-03-11T06:34:16.990Z] 06:34:16     INFO - TEST-START | browser/components/search/test/browser/browser_searchbar_context.js
[task 2021-03-11T06:34:17.233Z] 06:34:17     INFO - GECKO(1983) | [2021-03-11T06:34:17Z WARN  xulstore::persist] tried to remove key that isn't in the store
[task 2021-03-11T06:34:17.233Z] 06:34:17     INFO - GECKO(1983) | [2021-03-11T06:34:17Z WARN  xulstore::persist] tried to remove key that isn't in the store
[task 2021-03-11T06:34:17.233Z] 06:34:17     INFO - GECKO(1983) | [Parent 1983: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 1230ae800 == 12 [pid = 1983] [id = 28]
[task 2021-03-11T06:34:17.233Z] 06:34:17     INFO - GECKO(1983) | [Parent 1983: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 34 (126327040) [pid = 1983] [serial = 58] [outer = 0]
[task 2021-03-11T06:34:17.234Z] 06:34:17     INFO - GECKO(1983) | [Parent 1983: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 35 (12dc65800) [pid = 1983] [serial = 59] [outer = 126327040]
[task 2021-03-11T06:34:17.245Z] 06:34:17     INFO - GECKO(1983) | [Parent 1983, Main Thread] WARNING: NS_ENSURE_TRUE(uri) failed: file /builds/worker/checkouts/gecko/caps/BasePrincipal.cpp:1327
[task 2021-03-11T06:34:17.245Z] 06:34:17     INFO - GECKO(1983) | [Parent 1983, Main Thread] WARNING: NS_ENSURE_TRUE(rootFrame) failed: file /builds/worker/checkouts/gecko/dom/base/nsGlobalWindowOuter.cpp:4255
[task 2021-03-11T06:34:17.404Z] 06:34:17     INFO - GECKO(1983) | [Parent 1983: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 14190b400 == 13 [pid = 1983] [id = 29]
[task 2021-03-11T06:34:17.405Z] 06:34:17     INFO - GECKO(1983) | [Parent 1983: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 36 (126472740) [pid = 1983] [serial = 60] [outer = 0]
[task 2021-03-11T06:34:17.465Z] 06:34:17     INFO - GECKO(1983) | [2021-03-11T06:34:17Z WARN  webrender::device::gl] Missing optimized shader source for gpu_cache_update
[task 2021-03-11T06:34:17.465Z] 06:34:17     INFO - GECKO(1983) | [Child 1985: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 109011c00 == 2 [pid = 1985] [id = 32]
[task 2021-03-11T06:34:17.465Z] 06:34:17     INFO - GECKO(1983) | [Child 1985: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 11 (108721e40) [pid = 1985] [serial = 96] [outer = 0]
[task 2021-03-11T06:34:17.465Z] 06:34:17     INFO - GECKO(1983) | [Child 1985: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 12 (109060400) [pid = 1985] [serial = 97] [outer = 108721e40]
[task 2021-03-11T06:34:17.490Z] 06:34:17     INFO - GECKO(1983) | [Parent 1983, Main Thread] WARNING: NS_ENSURE_TRUE(presShell) failed: file /builds/worker/checkouts/gecko/dom/base/nsGlobalWindowOuter.cpp:4253
[task 2021-03-11T06:34:17.521Z] 06:34:17     INFO - GECKO(1983) | [Parent 1983: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 37 (12ef4c000) [pid = 1983] [serial = 61] [outer = 126472740]
[task 2021-03-11T06:34:17.605Z] 06:34:17     INFO - GECKO(1983) | [Parent 1983, Main Thread] WARNING: NS_ENSURE_TRUE(mPresShell) failed: file /builds/worker/checkouts/gecko/layout/generic/nsFrameSelection.cpp:1591
[task 2021-03-11T06:34:17.712Z] 06:34:17     INFO - GECKO(1983) | [Child 1988: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 2 (115a12400) [pid = 1988] [serial = 84] [outer = 0] [url = about:blank]
[task 2021-03-11T06:34:17.712Z] 06:34:17     INFO - GECKO(1983) | [Child 1988: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 1 (11cfb6800) [pid = 1988] [serial = 85] [outer = 0] [url = http://mochi.test:8888/browser/browser/components/search/test/browser/searchTelemetryAd.html?s=test&abc=ff]
[task 2021-03-11T06:34:17.712Z] 06:34:17     INFO - GECKO(1983) | [Child 1988: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 0 (11cfbf800) [pid = 1988] [serial = 86] [outer = 0] [url = https://example.com/ad]
[task 2021-03-11T06:34:17.737Z] 06:34:17     INFO - GECKO(1983) | [Child 1985: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 13 (10fc6dc00) [pid = 1985] [serial = 98] [outer = 108721e40]
[task 2021-03-11T06:34:17.738Z] 06:34:17     INFO - GECKO(1983) | [Parent 1983, Main Thread] WARNING: Forced to copy ObserverTable due to nested notifications: file /builds/worker/checkouts/gecko/image/ProgressTracker.h:83
[task 2021-03-11T06:34:17.738Z] 06:34:17     INFO - GECKO(1983) | [Parent 1983, Main Thread] WARNING: Forced to copy ObserverTable due to nested notifications: file /builds/worker/checkouts/gecko/image/ProgressTracker.h:83
[task 2021-03-11T06:34:18.296Z] 06:34:18     INFO - GECKO(1983) | FATAL ERROR: Non-local network connections are disabled and a connection attempt to ac.duckduckgo.com (52.149.246.39) was made.```