Rated 5 out of 5 stars

Love the extension but can't install on Firefox 8 (even v0.9.87).

When I try to install the download bar reaches 100% then nothing happens. Eventually I get a message telling my that Chatzilla is not compatible with Firefox 8. When I check the addons screen, it says Chatzilla is not compatible with Firefox 8.

Since the comment below indicates this is an uptime problem, I thought I'd try a few times. Tried 5 times and failed 5 times.

This review is for a previous version of the add-on (0.9.87). 

It definitely is compatible with Firefox 8. Please visit the ChatZilla IRC channel (use mibbit or some other IRC client if necessary) and we can help you there.
irc://irc.mozilla.org/chatzilla

Edit: I missed the comment from James earlier. addons.mozilla.org is having issues. I tried to reply to the previous review as well and it didn't go through.