Earlier in a previous post we covered “How to backup your Firefox profile“. Here’s how to use this backup to restore your Firefox profile to the backed-up state.

• Quit Firefox
• Locate your Firefox profile folder.
  • Windows: %APPDATA%\Mozilla
  • Mac: ~/Library/Application Support
  • Linux: ~/.mozilla
• Rename the existing Firefox folder (your current profile) to anything else like “Firefox-broken”. This will ensure that you don’t overwrite it and Firefox will stop using it.
• Open up the Firefox profile backup archive file that you created while creating the backup. Inside it you’ll find the Firefox folder.
• Restore the Firefox folder in the backup to the profile folder path as in point 1 above.

The next time you start Firefox it will use one of the profiles you backed up.

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