Widespread problem "Firefox is already running" suggests it does not close properly - is Mozilla solve this?

Several people including me have reported a problem when closing Firefox and then try to re - open. The message "FF is already running and should be closed... ' appears, but the taskbar does not display an active FF. At this point, it is necessary to use the Task Manager to close the old term.
1 this not always the case on my computer has started recently.
2. most of the time that it is indeed possible to open multiple versions of FF without difficulty. This problem only seems to happen if I close the first session and then immediately try to open a new.
So my question is what causes this, not what workaround to usable solution when it occurs.

1 both of these problems (ending to Firefox and restart) are a response

http://dmcritchie.MVPs.org/Firefox/Firefox-problems.htm#close_firefox

2. multiple versions of Firefox you have to use -no-remote on your combination of browser/profile not by default. Which cannot be by chance, so either you messed up in start parameters, or you didn't never have multiple versions of firefox running at the same time.

Please mark "resolved" a response that will better help others with a similar problem - hope it was her.

Tags: Firefox

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