Mozilla calls on users to protect Firefox from the NSA

[user37 28]

"As the Lavabit case suggests, the government may request that browser vendors secretly inject surveillance code into the browsers they distribute to users," Eich says. "We have no information that any browser vendor has ever received such a directive. However, if that were to happen, the public would likely not find out due to gag orders."

Because Firefox is open source, outsiders can not only audit the code, they patch holes in the software and distribute such changes independently of Mozilla. In other words, if there's a problem with Mozilla or Firefox, someone else can fix it and publish a new version online. "Through international collaboration of independent entities, we can give users the confidence that Firefox cannot be subverted without the world noticing, and offer a browser that verifiably meets users' privacy expectations," Eich explains.

http://www.wired.co.uk/news/archive/2014-01/15/mozilla

 

[HelixVexium 0]

I have never trusted the Sync part of FireFox.

 

Also Tor would work the same way as they said about FireFox here.