Bug 1057966 - [e10s] The help menu is blank
TypeError: content is null browser.js:5169
Which refers to this line:
var isPhishingPage = content.document.documentURI.startsWith("about:blocked?e=phishingBlocked");
The stack to getting there:
content is null for e10s windows, so let's just use contentAsCPOW here and see what happens, for the short-term solution.
Actually! Actually, I have a better idea. We can get the documentURI
off of the browser (both remote and non-remote), spec it to a string,
and do the comparison. Woo! This works.
Posting a patch.
Ok, got something posted that I like. Pushed.