https://bugzilla.mozilla.org/show_bug.cgi?id=1100301
1100301 - browser_aboutHome_behavior.js leaks global windows when --run-by-dir
RESOLVED (jmaher) in Firefox - General. Last updated 2019-04-12.
https://bugzilla.mozilla.org/show_bug.cgi?id=1243257
1243257 - Intermittent browser_aboutHome.js | application crashed [@...
RESOLVED (nobody) in Core - JavaScript: GC. Last updated 2017-11-02.
intermittentbrowserjsapplicationcrashed