Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

I want to deactivate my lost device from Sync

  • 1 reply
  • 1 has this problem
  • 15 views
  • Last reply by TyDraniu

more options

I have two mobile device, I lost one. When I change the password to my Firefox Sync account, I noticed that the other device was not disconnected, it even synchronized and update the password to other accounts that I was changing from my PC.

What should I do?

I have two mobile device, I lost one. When I change the password to my Firefox Sync account, I noticed that the other device was not disconnected, it even synchronized and update the password to other accounts that I was changing from my PC. What should I do?

All Replies (1)

more options

Go to https://accounts.firefox.com/ and click Disconnect on the device.