PUBLIC SERVICE ANNOUNCEMENT
Not sure entirely what is doing it, probably one of the extensions that wasn't coded properly, but basically it is this:
If you open CB in the first tab to the far left in firefox, chances are VERY good that every single link you press on the left navigation bar will try to break out of frames and cause the whole screen to refresh. In order to get around this, the obvious answer is: Open CB in your second or third tab. I wish I knew why this weirdness happened, and I'll see about posting it here for the firefox folks to have a look at. :)
That is all, back to your regularly scheduled blending.