Hi Tech,
Had to reinstall it, to make it working again.
It could have been as some suggest at a mozilla forum, that it is an incompatibility with another add-on or plug-in.
I have not been aware of that. At least it is functioning normally now. I personally think it had to do with a particular update.
Have you heard news about the hick-up so far? Are there others
with problems?
polonus