Is it buggy then? Well, I must be a lucky(or stupid) guy because I didn't notice. Go for it and report us back Gerard
Saved my old profile from 1.5. Un-installed it and installed 2.0.0.1 (latest vers.) Used Mr. Tech to make all non-compatible extensions compatible and all is well here. Your mileage may vary.
LOL 2.0.0.1 was a minor security update to 2.0.0 Had tried it as an over the top install but things did get a little buggy for me with extensions. So I did as outlined in my post above and all is well.
The only problem I had with FF2 was that a couple of the add ons were not initially supported - but that was sorted weeks ago.