Well, I got the new version 57 of FireFox today. New and Improved with
all new Quantum technology (whatever the crap that is). It is
noticeably faster and has new color skins (blander, much blander). It
appears that each webpage has its own process now plus a couple of more
for good luck.
https://www.mozilla.org/en-US/firefo.../releasenotes/

The only sad thing is that I lost my Autofill add-on.
https://firefox.add0n.com/autofill-forms.html

My Ublock Origin adblocker XXXXXX wide spectrum blocker did update also.
https://github.com/gorhill/uBlock#ublock-origin

Recommended. Bring lots of memory !

BTW, I am running the x64 version of FireFox on Windows 7 x64 with 16 GB
of ram.

Lynn