Hi everyone

Wonder if anyone can help me with this - on a website I've recently finished, I've noticed that Firefox is appending a strange set of characters after the URL, namely: #.T_qdxXDlWiY

So when I type domain.com/pages/pagename/ it changes to domain.com/pages/pagename/#.T_qdxXDlWiY

I cannot find anything about this on Google, but I wonder if anyone else has encountered this, and whether it's an htaccess issue or something? I have to say, it only seems to happen on a select few computers in the office...