I'm having a bug with the fans button above in the menu; I use another script which adds another button between them and now isn't your script correct.
An easy fix is to use the following xpath:
Watch the text contains as it looks for only the li node with the text "Fans" in it.
|pwlin Script's Author||
Thanks Jerone, I added your xpath and it seems still working. Please check it with that another script you are using and let me know if it's not fixed.
Working great. The other script btw is Userscripts.org Versions Tab