Unresponsive script problem in Firefox 3.6.3

Getting this message regularly before my browser hangs and then comes back to life about 30 secs after I tell it to stop.

Script: chrome://global/content/bindings/browser.xml:0

Using XP with adblocker plus for the RP site.

Anyone know what I can do? I´ve tried the Mozilla site and plenty people seem to behaving the same prob but no fixes out there.