Favorite links being rerouted to other sites? 0_o

[Dr. Zeppers]

It sounds like malware or a virus of some type on your system.
It could be as simple as something like a corrupt favorites list/file, but I doubt it (not sure how firefox stores favorites).

I would look for a few well known adware/malware, and virus programs and check out your system. A quick search on google, or yahoo will probably help you find a few.

Avast, AVG <-- well known free antivirus
Adaware, SpyBot Search&Destory <-- a couple well known adware/malware applications.

There are certainly others... I dont endorse any of them, just pointing out some known applications. Whatever you use, make sure you 'update' it even if just downloaded. Definitions for new issues are updated frequently, and seldom in the distribution files.

Have a great piratey day, and hope you get your issue there cleaned up!