I just downloaded the lasted "update" and suddenly EVERY SINGLE WEBSITE I visit, INCLUDING FIREFOX, is giving me a security error. This happened last year, and I was not the only person affected.
The last time this happened, I had to delete and reinstall my security software. After that, I did not download another Firefox update for fear it would happen again. Apparently, the latest update was installed without notifying me, and now it's happening again. Are you ever going to fix this problem? I should not have to reinstall my security software every time you issue an update!