Reply to Message

Very happy to have Firefox both at home and at work, with X-Marks syncing bookmarks between them, but which add-ons do you recommend for security, and which add-ons are the most dangerous and must be avoided?
FYI, my Firefoxes have NoScript, Adblock Plus, Better Privacy and Perspectives, but they also have one or two add-ons for right-clicking and opening in an IE tab.