I had this same issue and just fixed it. I have ubuntu 14.04 with xfce desktop so hopefully this will work on yours:
1st go into chrome and set it to default browser. Then go into applications and hit the standard browser icon and it should be asking you to set it. From here you surf to /usr/bin/X11/google-chrome.
That should fix it. As I said, I just fixed mine this way.
Good luck.
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