I was going to be installing ZA Free 6.5.737 (because 7.x has been doing weird things for me) on my new laptop, which is XP Pro SP2. But the manual for ZA 6.5 (I guess the full version) says that it's compatible with Firefox 1 and 1.5. I'm pretty sure people are using ZA Free 6.5.x with later versions of Firefox, but I wanted to verify.
Please let me know -- thanks!