I downloaded and installed the beta version of Firefox 3.0 a few days ago and have been using it since on my OS X Leopard laptop.
I also installed the Proto theme for Mac Firefox which significantly enhances the look of Firefox 3 on the Mac.
My initial impressions of Firefox 3.0b1 are very positive. It is fast, stable, looks really sweet and many of the memory issues which have dogged Firefox appear to have been fixed.
To expand on the memory comment, in Firefox the memory used to leak so the longer it remained open, the more memory it consumed. I have had Firefox running on this Mac now for several days with up to six windows open some of which have up to twenty five tabs running. Currently this is using 1.38gb of virtual memory. At the same time, Safari which has one window open with two tabs running is consuming 1.41gb of virtual memory!
One disadvantage of running the Firefox beta is that none of my favourite plugins now work but at least Del.icio.us have a bookmarklet which runs well out of the bookmarks toolbar so I can still bookmark there from Firefox.
The release notes list a raft of improvements under the headings:
- More Security
- Easier to Use
- More Personal
- Improved Platform for Developers and
- Improved Performance
Overall, I like it. It seems much improved, more responsive and less of a memory hog. Shades of good things to come!