That is an old page, back when it was a labs project called Weave. Try this: http://support.mozilla.com/en-US/kb/what-firefox-sync#w_what-is-a-sync-key-and-why

That is an old page, back when it was a labs project called Weave. Try this: http://support.mozilla.com/en-US/kb/what-firefox-sync#w_what-is-a-sync-key-and-why-do-i-need-one http://support.mozilla.com/en-US/kb/what-firefox-sync#w_what... There is absolutely no way for Mozilla to get your data, even if subpoenaed. And, if for some reason you still don't trust it, you can easily set it up on your own server.