The folks at Mozilla have released Mozilla v1.5, Firebird v0.7, and Thunderbird (an email client) v0.3. I'm using Thunderbird v0.2 for most of my email accounts and expect v0.3 will be pretty good. Also, Firebird is my favorite browser though I also use Mozilla, Opera, and occasionally MS IE on those rare occasions (maybe twice a year) when I hit a web page that is not compatible with the other browsers..

The ability of Mozilla and Firebird to block pop-ups makes them worth using for that reason alone. Also, the tabbed browsing feature is incredibly useful, especially the implementation in Firebird where any bookmark folder can have all its entries open at once in tabs. Unfortunately, the Mozilla implementation of tabbed browsing and bookmarks will only work with folders specifically created for opening in tabs.