Beta software isn't for everyone, but according to Mozilla officials, work on Firefox 4.0 has reached the stage where the newly released beta 7 "is considered to be stable and safe to use for daily web browsing, though the features and content may change before the final product release." Despite that rider, it seems that beta 7 is feature complete.
The main drawback at this time is that not all add-ons have been tested for compatibility.
As usual, the release notes include lists of what's new, known issues and more, but here are some of the highlights.
What else is new? Please read on.