exactly. i cant believe nobody here seems to know about profiles or about:profiles. its the perfect solution. my setup is tree-style tabs (recently made to work with 57) and a different profile for each task (one profile for each language im learning, one for music, and one for each research topic i might be pursuing). whats your setup like?
But does about:profiles work bug-free for you? From my experience it has had a long standing bug: when you select a different profile to the one you're currently using and click the "Open profile in new window" button, it actually loads the current profile again in another window. I read on a forum somewhere (forget the link) that this was an acknowledged problem and would be fixed sometime in future.
So at least until then, about:profiles is no replacement for using the -P command-line switch to start the profile manager.
Using multiple profiles seamlessly is one area Firefox can and should seriously improve, or Chrome's "User" feature will always have the edge.
