[https://bugzilla.mozilla.org/buglist.cgi?quicksearch=blocking2.0%3Abeta,final All Blockers] (blocking2.0:beta,final)
[https://bugzilla.mozilla.org/buglist.cgi?quicksearch=Whiteboard:4b2 QA during 4 Beta 1 cycle] (Whiteboard:[4b1])
[https://bugzilla.mozilla.org/buglist.cgi?quicksearch=Whiteboard:4b2 QA during 4 Beta 2 cycle] (Whiteboard:[4b2])