You can get older versions of Firebug here. I recommend NOT using 1.20b6 as it has a serious performance impact on using GMail. Grab 1.20b4 which is a much more stable release and works fine with GMail.

I can now say it's time to upgrade to Firefox 3.01. The 3.0 release was VERY unstable (esp. if you were using Rescue Time). The 3.01 release has fixed these bugs and is working much better for me. I can run my somewhat brutal JavaScript test suite (for PageForest) w/o crashes and Firebug seems stable with this release too.

The top AddOns in the bookmarks category (by weekly downloads). Some highlights:

Foxmarks - 110,000
StumbleUpon - 60,000
Clipmarks - 31,000
Delicious - 30,000
Yahoo Toolbar - 18,000
Yoono - 16,000
...
Mahalo - 345
Faves - 67 :-(

Foxmarks is getting 100,000 weekly downloads, and claim 2M downloads on the day of the FF3 launch.

IE has a subtle bug when parsing array constants - I think they are not in conformance with the ECMA-262 spec.

You can test your browser here:

http://pages.mckoss.com/dangle.htm

Update: Object initializers are even worse! Fails to parse the JS at all.

Easter egg in Firefox - type about:robots in the address bar.

Lots of folks twittering about the firefox 3.0 crashes!

And the stable version of Firebug for Firefox is here - version 1.05

I'm going back to Firefox 2.0 - 3.0 is too unstable! I couldn't find how to download FF2 on the getfirefox site - but all the released builds are on this FTP server. I think the latest 2.0 release is:

firefox-2.0.0.15.en-US.win32.installer.exe at:

http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/2.0.0.15-candidates/build2/firefox-2.0.0.15.en-US.win32.installer.exe