I had the same problem. So i made this:

Code:
 
on ^*:hotlink:*//*.*:*: { }
on *:hotlink:*//*.*:*: { run "C:\Program Files\mozilla.org\Mozilla\mozilla.exe" -remote openURL $1 }
on ^*:hotlink:*www.*:*: { }
on *:hotlink:*www.*:*: { run "C:\Program Files\mozilla.org\Mozilla\mozilla.exe" -remote openURL $1 }   


Benjamin Jensen, Sickness at Undernet.