For reasons I'm not going to go into here, I recently reversed my facebook stance and gave in. That said, however, it did get placed in what I'm going to call a "facebook" jail. I added a new user account to my linux server. As that happens to be an ancient Thinkpad A31p1, it can run firefox. I do have to admit, however, that it is not one of the fastest machines in the world on which to run firefox! As the machine is supposed to be a server2 I did end up setting up the userid so that it runs at a low priority (even if when I'm actuallly logged on to the box linux will give a boost since it knows the id is being used by an interactive user.
As a result It's interesting seeing quite how slow the page updates can be, even after tweaking firefox a bit. Still, for the moment at least, it will do and will slow down any data harvesting that facebook might try to do.
One interesting and reassuring side effect of running the noscript firefox extension on my main windows machine, is that facebook's shadow id mechanism didn't have a good handle on my social network! I have also experimented with a X server on windows and using firefox remotely - That, I have to say, is much too slow to actually be useful.