This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

restore old profile extensions

  • 2 replies
  • 1 has this problem
  • 6 views
  • Last reply by cor-el

bart11904
bart11904
more options

I copied data from old profile folder but there are no plugins in the program. Add-on files exist. How to restore add-ons with their data?

I copied data from old profile folder but there are no plugins in the program. Add-on files exist. How to restore add-ons with their data?

All Replies (2)

FredMcD
FredMcD
more options

There are two types of Add-ons. There are the Extensions that you find and install. And there are also Plugins. These are from other programs that are on your system when Firefox starts. Like video players, anti-virus, and many more. You can disable normal Add-ons by going to the Add-ons Manager,

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Data from extensions are stored in the storage folder (indexedDB). However this extension data is linked via a UUID that is stored in a pref in extensions.webextensions.uuids in the profile folder, so it is not easy to transfer extension data. Some extensions offer to backup their data, so first check that if you still have access to the old setup.