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I had 2 profiles on firefox, then I installed the new beta, now they are gone.

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I have searched for ways to "import" my profiles into the new beta firefox with no success. I finally located the 2 profiles and saved them on my desktop, but now I don't know how to incorporate them into the beta firefox that I'm currently running.

I have searched for ways to "import" my profiles into the new beta firefox with no success. I finally located the 2 profiles and saved them on my desktop, but now I don't know how to incorporate them into the beta firefox that I'm currently running.

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You should be able to just copy the files back and forth between profiles.

See:

Recover important data from an old profile

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Firefox should recognize all profiles from all Firefox versions if they are registered in the profiles.ini file.

See also:


Do NOT remove personal data when you uninstall a Firefox version because all profile folders will be removed and you will lose bookmarks and other personal data from other Firefox versions.