Userscripts.org

I have a similar problem to the one with the podcast links (http://userscripts.org/topics/25481 ). When a link points to a skype contact (like skype:skypename?add , for documentation see here: http://www.skype.com/share/buttons/advanced.htm... ), Firefox opens a window asking me, if I want to open it with Skype. But I just want the link to be decoded as a link.
This is a particular relevant issue, since some sites don't allow to post links other then the ones starting with http, so linking to tinyurl is a common trick of getting around those rules.
I tried digging into the code a bit but Firefox seems to intercept the link before it arrives at a response in the Greasemonkey script. So I thought I pitch this problem to you, since you know the code better and understand the internal workings.
Otherwise, great script. Thanks
David