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Firefox Dev to Firefox release migration

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I have working "firefox developer" with "firefox-dev" profile. I want to migrate to stable "firefox", but release firefox show message

You've launched an older version of Firefox

Using an older version of Firefox can corrupt bookmarks and browsing history already saved to an existing Firefox profile. To protect your information, create a new profile for this installation of Firefox.

so what can i do to migrate? is it possible to migrate to profile with lower firefox version?

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