Firefox I've lost my Firefox Sync account information - What to do
Firefox Sync works by storing your data on Mozilla servers and syncing it with your computers and devices. When you set up Sync, you enter a username and password in order to prevent others from accessing your account. In addition, we encrypt your data with a Sync KeyRecovery Key in order to keep it safe on the server. This article explains what to do if you forget or lose any of this important information and are unable to access your Sync account.
Table of Contents
I've lost my Recovery Key
If you don't have a copy of your Recovery Key saved anywhere, or another computer or mobile device that's synced (see Where can I find my Recovery Key?), you can generate a new one.
- At the top of the Firefox window, click on the button and then select At the top of the Firefox window, click on the menu and then select On the menu bar, click on the menu and select At the top of the Firefox window, click on the menu and select
- Click on the panel.
- Click and a new window will open.
- Under I already have a Firefox Sync account, click .
- Click I don't have the device with me.
- Enter your account email address and password.
- Click I have lost my other device and a new Recovery Key will be made for you.Tip: It's a good idea to print or save your Recovery Key so that you can access your information even when you are away from this computer.
- Then click . You will see the Setup Complete screen.
- Click to close the setup window.
I've lost my Sync Key
If you don't have a copy of your Sync Key saved anywhere, or another computer or mobile device that's synced (see Where can I find my Sync Key?), you can generate a new one.
- At the top of the Firefox window, click on the button and then select At the top of the Firefox window, click on the menu and then select On the menu bar, click on the menu and select At the top of the Firefox window, click on the menu and select
- Click on the panel.
- Click and a new window will open.
- Under I already have a Firefox Sync account, click .
- Click I don't have the device with me.
- Enter your account email address and password.
- Click I have lost my other device and a new Sync Key will be made for you.Tip: It's a good idea to print or save your Sync Key so that you can access your information even when you are away from this computer.
- Then click . You will see the Setup Complete screen.
- Click to close the setup window.
I’ve forgotten my Sync password — how do I reset it?
To get a new password follow these steps.
- Go to https://account.services.mozilla.com.
- Click .
- Enter your username (this is the email address you used when you created your Sync account) and fill in the captcha to prove that you're a real person.
- Click . You will receive an email with a link.
- Open the email, click the link and a new page will be opened.
- Type your new password twice.
- Click to save it.
Now you're ready to go. Remember to update your password on all your synced devices by clicking and in the bottom error bar that will be displayed.
I’ve forgotten or no longer have access to my Sync email address
Unfortunately there's no way to change or recover the email address associated with a Sync account. You would need to create a new account following the steps described in How do I set up Firefox Sync?.
I've forgotten my master Firefox password
For security reasons, your master Firefox password is not synced. If you've forgotten your master password and want to stay synced, you'll need to reset your master password and re-add your computer to Firefox Sync.
- Reset your master password by following the instructions in Reset your Master Password if you've forgotten it.
- At the top of the Firefox window, click on the button and then select At the top of the Firefox window, click on the menu and then select On the menu bar, click on the menu and select At the top of the Firefox window, click on the menu and select
- Start Firefox.
- Re-add your computer to Firefox Sync.
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