Firstly, sorry if this is in the wrong forum... Wasn't too sure where to put it.
I'm not sure if it's some addon I've got installed or something, but whenever I go to my personal site (http://dan.cx) in Firefox, I get the following error message in the Firefox error console (and in Firebug's console):
Anyone know what could be causing this? Opera and Chrome don't seem to throw any errors like this, and I haven't gotten any errors like this on other sites I've tested in Firefox.
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