Perhaps you could also explain why your various support people, well the ones I dealt with, took so little interest in believing there was a fault within the Kaspersky FF extension, despite the various threads and posts about it here and my informing support of the other posts and providing quite detailed information. No real interest was taken in the real crux of the problem involving the FF extension, despite clear evidence that simply disabling and reenabling it was the crux of the issue and that it wasn't some more general AV issue.