firefox issues with unattended site menu items?

[durex]

2 Pcs, both with Firefox 1.0, different extensions on each

1 works fine and dandy with the unattended site

the other is having issues with the menu items. Straight single clicking isnt working. If I Ctrl+Click (open in new tab) or shift+click (open in new window) it works fine.

Got a bunch of extensions installed but none really seem as though they would cause something like this.... any ideas?

[durex]

sure enough... it was a FF extension. WebCompose extension to be exact was the culprit.