(Ed. note: Firefox 3 is to be released today by Mozilla.com. Here are some of the features you're likely to see.)
A couple of months ago, I downloaded a beta version of Firefox 3 just to look at the new ideas Mozilla was working on. My intention was to try it for a couple days, then switch back to Firefox 2. I wasn't worried about stability (it's a browser after all -- what's the worst that can happen?). But the beta wasn't compatible with lots of my favorite extensions and who wants to live without them?
In Video: Mozilla Firefox 3 Beta: A First Look
As it turns out, I'm still using a prerelease version of Firefox (they're at Release Candidate 1 now) and loving it, even without my beloved add-ons. The improvements Mozilla has made to the browser, while subtle, are so helpful that I didn't want to give them up. Here are five of my favorites.
1. Much Better Performance
I can't remember the last time I've had that experience with the Firefox 3 betas. Mozilla developers borrowed some memory management tricks from the Free BSD operating system for the Windows and Linux versions of Firefox. (They say memory management on Macs already worked pretty well.) The effect is clear. The browser is much less likely to commandeer too many system resources. And Firefox's developers worked to make sure that add-ons, notorious memory thieves, don't cause problems either. They've rolled in cycle collectors that help prevent extensions from locking up RAM and not giving it back. They're also distributing tools to third-party developers that will help them build more abstemious add-ons.
2. The "Awesome Bar"