I downloaded and used Glary. Immediately after I cleaned the registry, I tried to access my Facebook account. I was able to access it, but I could not see any of the background, or any of my posts, or anyone else's posts. I could only see my name and profile photo. Also, when I opened up my Yahoo mail, there were a lot of field markers above the main body. As with the Facebook site, there was no border, no background. Something was erased which should not have been erased.
This only happened on the Firefox browser. Apparently Internet Explorer was unaffected.
Unfortunately, I did not back up my computer prior to using Glary. The glowing reports I read about it convinced me that it could do no harm.
I downloaded a fresh copy of Firefox, but it did not fix the issue.
Does anyone have any suggestions?