How the !@#$%^&* do I run firefox on multiple machines?
Needed a different environment (including time zone and proxy servers), so I installed firefox on another machine.
Started a shell via ssh on the other machine (with X forwarding), and ran /path/to/firefox in it. Instead of starting firefox on the other machine, the program opened a new window on my machine.
Confirmed the problem in reverse, as well. Stopped firefox on my machine. Ran /path/to/firefox on the other machine, which now ran fine (easy to spot - the look, all of the settings, and even the version are different). Tried starting firefox on my machine, and now I got another window of the firefox running on the other machine.
UGH! This is horrible behavior, and something I have never encountered in other browsers. I hope there is some configuration option to correct this, but I couldn't find it.
These are recent 64-bit versions (60.0.2 and 61.0.1) running on linux (I can provide more details, but doubt that they relevant to this problem).