There's no reason to have browser.toolbars.showbutton.mynetscape and browser.toolbars.showbutton.net2phone in the mozilla all.js file. The prefs should be moved to the commercial tree where they are actually used.
Comment on attachment 93803 [details] [diff] [review] patch r=caillon pending this getting checked into commercial. http://bugscape.netscape.com/show_bug.cgi?id=18882 filed to do so.
Comment on attachment 93803 [details] [diff] [review] patch sr=blake
confirmed via lxr. marking vrfy'd.