Ok, seemingly fixed the problem. Aka, so far cannot reproduce it.
1. Uninstalled FRF69.0.3 via Programs & Features. Then opened windows explorer and deleted all the various Mozilla folders.
2. Searched the C: drive for Mozilla, deleted all except the two winsxs Mozilla folders. Btw my profile folder was 484MB.
3. Ran CCleaner and JV16 Power Tools 2011 reg cleaner.
4. Defragged C: and deleted the page file, rebooted, and re-created the page file.
5. Installed FF 70, set it up the way I like, plopped the Chrome folder in place (aris-t2 v2.7.9)
6. The FF 70 install created TWO profile folders... ********.default, and ********.default-release. FF would not function with the -release folder deleted, so I deleted the other one. FF still functions normally.
7. FF 70 also created a pingsender.exe entry in my Bitdefender firewall, which I blocked and everything still functions normally.
Notes: When I uninstalled and removed all traces of FF, I found a registry entry relating to a marshall.dll file. I don't know wtf this is. I just now searched for it on the C: drive and in the registry... no results. Did a Goggle search for marshall.dll and didn't find anything...I could understand. Might be something that the bug folk should check into?
Finally, here is what I have FF 70 looking like on Windows 7 Home Premium 64bit...this is exactly how I want it to look. I even got the tabs back on the bottom, where I think they should be.
Last of all... Bitdefender Internet Security 2020 (for about the last 3-4 months), has popped up this warning, when I log in to these forums. This warning doesn't bother me, but it's something that should be looked into... possibly.
Things I don't like about the newest FF 70...
1. I don't like that FF 70 clean install creates TWO profile folders.
2. I don't like that FF 70 clean install creates a pingsender.exe entry in my firewall.
Other than these two things....the FF 70 is awesome. Sites like weather.com are seriously faster than they used to be. As long as the problem in the OP doesn't recur... we're golden.
We the willing, led by the unknowing, have been doing the impossible for the ungrateful. We have been doing so much, for so long, with so little, we are now qualified to do anything with nothing.