Firefox 4

[#1]

Is anyone using Firefox 4 ?
I Know it's at the beta stage and can be downloaded but is it worth using in it's beta stage or is it better to wait until the official version is released, which I understand will be next year ?

[#2]

Nope, Personal opinion I would wait on the official release.

[#3]

wouldn't use firefox4 beta as main browser yet -- till it's out of beta --  I do have it  running beta7 right now BUT only isolated in portableapps as many of the extensions don't work -- and as release date has been pushed back some extensions won't be ready till new year some time