Pale Moon. Almost identical to Firefox.
http://www.palemoon.org/download-ng.shtml
I had it installed, running with all of my bookmarks in less than five minutes. Not a single hiccup.
At the bottom of the website’s homepage it says “powered by Mozilla.” Wouldn’t that make Palemoon a Mozilla program by default?
Thanks RF. Enjoyed your about page cigarette saga, btw.