Firefox 1.0.6 is now out to fix the problem with broken extensions. Unfortunately it breaks roboform’s extension even more as they added version checking into their latest patch so it can’t be used in 1.0.6. I’m still having problems with this extension – I thought I had narrowed the problem down to a mailto link in a form but it also crashed on me this morning when adding some more urls to the MT blacklist. It didn’t like me selecting some text with the mouse, but when I repeated the action after it had relaunched it was ok.