Mozilla launched the new Firefox Sync feature in Firefox 29 to improve the usability of the process. It requires that you create a Firefox account which is used for authentication.
The creation of the account requires verification of the email address which Mozilla has been criticized for by some users of the browser.
Firefox Sync enables Firefox users to synchronize browsing data between devices. The synchronization process supports tabs, bookmarks, passwords, the browsing history, add-ons and preferences currently.
If you have set up the new synchronization feature on a device you may have noticed that passwords are not included in the synchronization process even though Sync supports that.
The reason here is that passwords won't be synced if a master password is set on the target machine. Mozilla's suggestion is to remove the password password. While that is an option, it is not really the best option considering that the passwords won't be protected anymore by the master password on local machines.
The master password needs to be entered once per browsing session to unlock the passwords stored in Firefox's database.
Do the following to disable the master password in Firefox:
Mozilla is working on a solution apparently to make Firefox Sync compatible with master password set. Unfortunately, no data was given when this is going to be corrected.
According to some replies on the linked Bugzilla page above, the reason why the new Firefox Sync cannot access passwords protected by a Master Password is that it can't access the encrypted passwords at all before the passwords are decrypted by the master password. Since Mozilla could not fix the issue in time for Firefox 29, it decided to disable password syncing if a master password is set instead.
So what are your options right now if you want to sync passwords?
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