don fisher composed on 2018-07-28 18:08 (UTC-0700):
Is there a way to load an old version of Firefox? I guess I am simple, but I never felt the need for more than Netscape:-) Is there a way to get to older distribution trees, something like 3.1. I found a 42.2 dist with a Firefox 49.0.2-37. Do you see any problem installing this?
I have and use all the final and latest ESR releases:
Use a separate profile for each.
Run more than one at a time with this ENVAR:
or this startup switch: