What do you all think of editing point #1 something like this?
1) a) If you have any Firefox extensions called HP Smart Web Printing, Skype, .NET Framework Assistant, or McAfee Site Advisor, then uninstall or disable them. They're buggy and known to cause problems with the status bar icon.
b) If you have any Firefox extensions called Ghostery or Blur, try temporarily disabling them then restarting the browser. Those extensions are notorious for causing all sorts of odd conflicts with NoScript.
(Also, IIRC Disconnect, Flash Control, and WOT were known to cause weird issues... but since there haven't been much if any recent reports of incompatibilities there, I say let's not mention them for now.)
While we're at it, should we mention that Linux users try the official Mozilla build of Firefox if all else fails in troubleshooting a particularly weird issue?