I open firefox for 2 different profiles with the command:
/usr/bin/firefox -P -no-remote %u
In each profile A, I login to my one gmail account
and in second profile I login to my other gmail account.
Attempting to login to 2nd account fails because I am not granted
the same login screen where you enter you email address, and then
prompted for the password. Instead, you can only creat a new pay-for-it
account.
Google must be hurting for cash ??? :) :)