GaryK - 4:04 am on Nov 22, 2012 (gmt 0)

Might see how long I can keep FireFox open for, to hold off this update as long as possible, if these issues are in fact wide-spread.

If you go into Options in the Advanced section on the Update tab you can disable checking for updates. FF suggests you not do this, but if you keep up with their update cycle via sites like this you can download the update directly and install it yourself.

Portable apps (website) has older stable FF versions for development testing usage.

You can also download any previous release directly from Mozilla.
ftp://ftp.mozilla.org/pub/firefox/releases/