mozilla/bedrock — pull request #2476 by alexgibson (2014-11-10 18:57:33+00:00)
Title: [bug 1096489] Temporarily disable doorhangers on dev browser firstrun for Mac users

See https://bugzilla.mozilla.org/show_bug.cgi?id=989947#c21

Marking this as do-not-merge for now. Still waiting on confirmation if this can get fixed in-product & uplifted, else we might need to temporarily disable for Mac OSX.