So the I-Book operating system (I've forgotten what it is, OS-something) will run one of the firefox browsers?
Thanks
All current Macs - iBooks, Powerbooks, G5s,. the Mac Mini, the iMac, or the eMac, all run the full Mac OS 10.3, aka Panther.
There's a version of Firefox for Mac - but the reasons for *needing* Firefox doesn't exist on the Mac OS - they are'nt vulnerable to malware, viruses, trojans, pop-ups, spyware, whatever is lurking out there. The Safari web browser which is free with the Mac OS is very similar to Firefox, and has tabs and a built-in pop-up blocker, and will probably suit you just fine.