Bug 1756235 - Logspam during crashtest runs: JavaScript error: resource://gre/modules/URLQueryStrippingListService.jsm, line 90: TypeError: can’t access property “removeEventListener”, Services.cpmm.sharedData is null
Commented!
Intermittent failure talk
What is an Intermittent Test Failure?
(Mike gives his sloppy definition in the video)
Mike’s guide to dealing with intermittent test failures
If you can, get it to reproduce locally!
Look at the platform it failed on. Do you have access to it?
See if you can reproduce it on that platform! Chances are, if it’s restricted to a particular platform, you have a better chance of reproducing it there.