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Can I switch profiles without stopping Firefox?

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I have two profiles I use frequently and it would be useful to be able to toggle between them. So far, the only way I have found to change is to stop Firefox and restart it in the profile.

I have two profiles I use frequently and it would be useful to be able to toggle between them. So far, the only way I have found to change is to stop Firefox and restart it in the profile.

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You can add -no-remote to the command line to open another Firefox instance with its own profile and run multiple Firefox instances simultaneously.