Hi Ed, I thought I had given folk advance notification that FF 13 was available from 5th June. Anyway, that apart, I would think that ABers who were on FF12 will have received FF13 as an Automatic Update and have no cause for complaint, as everything appears to be working well. (it is for me)
Incidentally, there's not long to wait for further up-dated versions of Firefox.:-
14....July 17th
15....Aug.28th
16....Oct 9th
Ron.