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AfteropeningFirefox,clickontheMenubutton(theiconwiththreelines)intheupperrightsideoftheaddressbar,andthenselectHelp.,UndertheApplicationBasicssectionnexttoProfileFolderProfileDirectory,clickOpenFolderShowinFinderOpenDirectory.Awindowwillopen ...,...
How to use another existing Firefox profile (the easy way)
Allyouneedtodoisreplacethecontentsofthenewprofilefolderwiththecontentsoftheoldfolder.
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