Comment 3 for bug 152990

Alexander, thanks for your reply, but, what do you mean by "not supported"? Let's suppose the following cases:

a) Not supported = it shouldn't be allowed. Then I think a better message is needed ("not responding"?), and I shouldn't be able to run "sudo firefox" even when no previous ff window is open (which currently I'm able to do).
b) Not supported = the result is unpredictable. I think it's not good. Previous case should be preferred.

If you think I should open a new bug for case "a" please let me know.