Well folks, I managed to restore to the previous version of Firefox on the Mac platform, 1.07, until such time as Mozilla can fix what’s wrong with 1.5. I essentially had to do a complete wipe of anything and everything Firefox from my system and do a clean re-install. It worked! Even though this means I have to re-establish most of my links, that’s nothing.
That’ll also teach me to be more careful next time. Quick! If the co-conspirator happens to be reading this, you can give me 10 lashes with a wet noodle.