Question Firefox data recovery

[brian_fargo]

Where is the Bookmarks/Passwords/Forms/Login and Browsing History folder located in Firefox?

 

[USAFRet]

Exporting a whole FF profile:

How to Transfer a Firefox Profile to a New Computer | Firefox Support Forum | Mozilla Support

support.mozilla.org

"The file location is "%APPDATA%\Mozilla\Firefox\Profiles". Simply copy that, throw it on a flash drive, and then move it to the same location on the new machine."

 

[brian_fargo]

The directory is Local, LocalLow or Roaming?

 

[USAFRet]

The directory is Local, LocalLow or Roaming?

Looking at my system, Local was the most recently updated. Last week, instead of last October.

So Local is it.

 

[hotaru.hino]

Since I do this all the time, if you have an existing Firefox install, delete the data that's already there and put the backup there so Firefox uses that instead of the other profile


AFAIK, there's no way to merge the data via this method