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How do you start different instances of Firefox not childthreads but new processes on Win 32?

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up vote 1 down vote accepted

Multiple profiles on multiple processes: Opening a new instance of Firefox with another profile

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Ok great thanks! – Chris_45 Nov 19 '09 at 12:59

Firefox has a "Single Process" model, which basically means you cannot have multiple processes. Read this article for an explanation of why.

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horsepuckey. see the other answer. this is only correct inasfar as multiple firefox processes can't access the same profile. – quack quixote Nov 19 '09 at 8:59
The program is not intended to run in multiple processes, but I see that it seems to be possible. – C. Ross Nov 19 '09 at 15:35
it's designed to be run on multi-user systems, simultaneously, by differing users, and has been since it was Netscape Navigator. this requires multiple processes to keep user data separate. it is most certainly intended to be used in this way. – quack quixote Nov 19 '09 at 17:53
It is not intended to have multiple processes per user, which he's obviously asking about. – C. Ross Nov 20 '09 at 17:41

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