OK, so there’s already an updated version that fixes the problem.  But there is (was?) a problem!

It seems that Firefox was invincible because no one was attacking it.  Now there are 25 million Firefox users.  Now there are exploits.

For the record, I occasionally use Firefox myself.  It is a fine browser, although I’m not a fan of tabbed browsing.  I’m primarily a Microsoft fan, but have a few open source items that I use and appreciate.