Firefox Sync Login

Disable Firefox Sync Learn how to turn off Firefox Sync if you’d like to use your Firefox Account without syncing data such as, bookmarks, history and tabs. I've lost my Firefox Sync account information - What to do This article explains what to do if you forget or lose your Firefox Account password and can't access your Sync account.

Click the Firefox Account icon in the toolbar. Click Turn on Sync. Fill out the form to create an account. Take note of the email address and password you used. You'll need them to sign in. Firefox Accounts will send you a confirmation email. Use the verification link to confirm your account. Click the Firefox Account icon to expand the menu.

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Firefox Sync works by storing your data on Mozilla servers and synchronizing it with your computers and devices. When you set up Sync, you enter an email address and password in order to prevent others from accessing your account.

Firefox Sync is built into the desktop versions of Firefox, as well as Firefox for Android and Firefox for iOS. Firefox Sync synchronizes state and configuration data used by the browser, such as bookmarks, history, preferences, bookmarks, and so forth among all your devices.

Thanks for your help so far. The thing is when I logged in with the Firefox-36 ( after resetting windows 8 and re-installing Firefox), I didn't create a new sync account, it logged me in without any problem. I have read other blogs too and it seems you are thinking it as "Old Sync" and "New Sync" problem.