Thank you “jorgeve” for responding to my question.
I made a copy of the page “Change profile” as I would have to shut down
FireFox to change the profile but I should have but one profile.
I have had this computer, service provider, FireFox & W7 for several
years now at this location, only the add ons, theme & FireFox updates &
other updates have changed.
This is what my “theme” tab should be showing.
This is what I have now - nothing!
But clearly I do have a theme installed & working, Lava Fox V2.
The add-on tab is now just as blank.
When I first get through re-re-re-re-re-installing the theme &
extensions AGAIN, the Add on tab shows what I have installed but next
time I open FireFox, there all gone again!
This is what should be showing, not just a blank page!
Thank you for your help, I’m hoping I don’t have to change my profile as
I would just be putting in the same information unless it got corrupted
somehow.
I did discover that “Flashblock” was messing up Alternets pages making
them blank when re-loaded. It’s gone now.
Sheila