Bug 1025727 - [email/cronysync] Failsafe abort/window.close after (multiple?) failed cronsync(s)
Merge pull request #20828 from jrburke/bug1025727-email-cronsync-failsafe

Bug 1025727 - [email/cronysync] Failsafe abort/window.close after failed cronsync(s) r=mcav