Firefox_Sync
Firefox Sync
Browser synchronization feature for Firefox
Firefox Sync, originally branded Mozilla Weave,[2] is a browser synchronization feature for Firefox web browsers. It allows users to partially synchronize bookmarks, browsing history, preferences, passwords, filled forms, add-ons, and the last 25 opened tabs across multiple computers.[3] The feature is now included in Firefox and is being implemented in Thunderbird.[4]
It keeps user data on Mozilla servers, but according to Mozilla the data is encrypted in such a way that no third party, not even Mozilla, can access user information.[5] It is also possible for the user to host their own Firefox Sync servers, or indeed, for any entity to do so.[6]
Firefox Sync was originally an add-on[7] for Mozilla Firefox 3.x and SeaMonkey 2.0, but it has been a built-in feature since Firefox 4.0[8] and SeaMonkey 2.1.[9]
Firefox Sync is built on top of Firefox Accounts as of Firefox 29, and therefore Firefox 29 and later cannot sync with Firefox 28 and earlier.[10]