PrivacyFix is an extension for Chrome and Firefox to analyze your privacy settings for G+, Facebook, and other ad tracking sites. It then helps you change the settings by taking you directly to the g+ and fb settings in your browser. Sadly it isn't available for Safari nor IE… but you aren't still using IE, are you? :)
I highly recommend that you try this tool out. Internet privacy gets complicated and Facebook, especially, doesn't make it easy to find and change your settings. PrivacyFix also does a nice job of expelling the ramifications of enabling/disabling each setting..