A quick heads up -
I have FF 3.5.7 with several addons including ABP and NoScript.
I was just offered updated to both ABP (1.1.3) and NoScript, but one of the upgrades corrupted the FF extensions database.
A note on the Adblockplus.org site led me to a
Mozilla KB with details on how to rebuild the extensions db.
So - if anyone starts seeing ads after an ABP update, you know where to look.