About Sync by Mark Hammond, Sammy K

Show information about Firefox Sync. This addon shows information about your Sync account, including showing all server data for your account. It is designed primarily for Sync developers or advanced users.

4.7 (17 reviews)

2,830 Users

You'll need Firefox to use this extension

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About this extension

This addon shows information about your Sync account, including showing all server data for your account. It is designed primarily for Sync developers, or advanced users who would like some insights into their Sync data.

Once installed, enter about:sync into the address bar

The source code is at https://github.com/mozilla-extensions/aboutsync and pull requests are welcome!

Rated 4.7 by 17 reviewers

Release notes for 0.25.20250227.104629

Updated to work with recent changes made to Firefox.