Is Windows 10 Accounts Port safe?

Clean risk

This extension lets Firefox sign in to supported sites using Windows 10 accounts.

It ports Chrome’s Windows 10 Accounts integration to Firefox and works with Microsoft’s native messaging host on Windows. The extension is no longer needed starting in Firefox 91, which includes direct Windows SSO integration.

0Risk

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

Where it sends data

Destinations our analysis observed Windows 10 Accounts Port contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.

  • login.microsoftonline.com

    Windows 10 Accounts Port sends data to login.microsoftonline.com. 8 other extensions we have analysed send data here.

  • com.microsoft.browsercore

    Windows 10 Accounts Port sends data to com.microsoft.browsercore. One other extension we have analysed sends data here.

Updated 15 October 2026amo-967327