2055489 - browser_aboutSupport_user_namespaces.js fails when browser.nova.enabled is true

Status: RESOLVED DUPLICATE of bug 2050961

(Firefox :: General, defect)

Description

[Sarah Clements [:sclements] | PTO until Oct 12th]

browser/base/content/test/about/browser_aboutSupport_user_namespaces.js fails on a Nova-enabled try push (browser.nova.enabled=true) and is not yet tracked under meta bug 2049911.

Try push: https://tests.firefox.dev/try.html?rev=9336ab74af6362f103602887d7d57b021a69331c
Test dashboard: https://tests.firefox.dev/test.html?test=browser/base/content/test/about/browser_aboutSupport_user_namespaces.js

Failing platform(s): linux2404-64

Sample failure:
TEST-UNEXPECTED-FAIL | browser/base/content/test/about/browser_aboutSupport_user_namespaces.js | test_user_namespaces - User Namespaces should be loaded to table, set to false, have red background color, and have support link

Possible duplicate: Treeherder associates this test file with existing intermittent bug 2018418 (a file-level tracking bug, not a match on this specific failure line). Please confirm during review whether this Nova failure is that known intermittent or a distinct Nova regression, and close as duplicate if appropriate.