TBH, i would like to see all the like/+1/tweet/digg buttons gone, they are a big privacy hazard. This functionality should be included in the browser or available from extensions.
http://open-bits.com/shellfish/
http://webgraph.com/resources/facebookblocker/
With ad block it cleans pages up like you wouldn't believe. Many sites actually become readable :O
So, if you only want Facebook gone, by all means use FBB. If you don't want trackers in general (Google Analytics etc), use Ghostery.
https://addons.mozilla.org/en-US/firefox/addon/2-click-like/
:)