Pre=release

https://bugzilla.mozilla.org/show_bug.cgi?id=355273. I knew I had seen this bug before during Firefox testing. Turns out it affects both FF and Tbird.
https://bugzilla.mozilla.org/show_bug.cgi?id=377652 - Seems to affect the DE locale only on Mac. Tomcat followed up and tested some additional P1 locales and did not see the issue.
https://bugzilla.mozilla.org/show_bug.cgi?id=377930 - Buttons cutoff in Preferences (da)
https://bugzilla.mozilla.org/show_bug.cgi?id=377670

Live Testing