Weird text using a Firefox extension

[ForUntoOblivionSoar∞]

Whenever on Firefox using the 600% Sound Add-on, every time I hit submit for a post, I get something like the following appearing at the end of my post:


******** src="moz-extension://7a409093b0e85-8ksld897987-43a55534/js/app.js" type="text/javascript">




I then remember the app is broken on this site, disable it, edit my post to delete the text, and then it goes away.



Just thought I'd let you guys know. Obviously it's because of the add-on, but it is odd that it only happens on this website.