I know how you feel :confused:
The only reason I asked was that it rather looks as if the heinous update process works through the IE version, and, if lazydogmot and I are right, the 2.6.6 Firefox extension should be OK, and proof against underhand incursions, since the update would then have to take place through the usual Firefox extension update process, and could thence be refused. Only time will tell, I guess, if we're right.
McAfee, if you're listening, the sneaky IE update route is plain rude, not to mention condescending and slightly sleazy. Stop it, right now!