I would definitely recommend NoScript if it weren't for the fact that some friends would not know how to white list the web sites they visit often. I know that many of us see it as a drop-dead simple method of clicking on the NoScript icon at the bottom and whitelisting the domain, but you'd be surprised what technical knowhow (lack thereof) your friends may have when you fix their boxes for them.
With Privoxy I typically set up a quite loose user.action file with several typical sites whitelisted including those they usually visit (I usually ask). If it's too much trouble for them, I'll leave Privoxy off in FF but keep it in MSIE.
Bookmarks