1) if you are concerned about privacy you should also turn off malware protection in FF because it sends pages that you visit to Google (yes, I know their privacy policy - do you trust them?). For additional points you can open about:config, search for "google" and remove all occurences. Point being: even FF doesn't completely protect your privacy by default.
2) DDG is great and I use it, but if I were really concerned about privacy I would use a non-US provider (StartPage is based in Netherlands, not sure where they host their servers though). Point being: DDG claims they don't store user data, but that doesn't mean NSA doesn't either. If they are USA based, they must obey USA laws.
1) if you are concerned about privacy you should also turn off malware protection in FF because it sends pages that you visit to Google (yes, I know their privacy policy - do you trust them?). For additional points you can open about:config, search for "google" and remove all occurences. Point being: even FF doesn't completely protect your privacy by default.
2) DDG is great and I use it, but if I were really concerned about privacy I would use a non-US provider (StartPage is based in Netherlands, not sure where they host their servers though). Point being: DDG claims they don't store user data, but that doesn't mean NSA doesn't either. If they are USA based, they must obey USA laws.