If you downloaded Wizz RSS 2.9.1 (3.0.0 Beta 2) from the forums and you’re wondering why it doesn’t work with Firefox 3.0b2, it’s because some aspects of Places within Firefox 3.0b2 have changed. Of course if you didn’t change maxVersion in install.rdf, 2.9.1 won’t even install on Firefox 3.0b2, but if you did change...
