Comment 14 for bug 776393

I was able to fix this issue by adding 'google-chrome.desktop' to the cooresponding file associations in this file: ~.local/share/applications/mimeapps.list

More detailed information on how to edit this file can be found here: http://www.johannes-eva.net/change-the-default-application-ubuntu-linux

Here is my version:

--------------------BEGIN FILE-----------------------------

[Added Associations]
application/xml=gedit.desktop;
application/x-php=gedit.desktop;
x-scheme-handler/http=google-chrome.desktop;firefox.desktop;
x-scheme-handler/https=google-chrome.desktop;firefox.desktop;

[Default Applications]
x-scheme-handler/http=google-chrome.desktop
x-scheme-handler/https=google-chrome.desktop
x-scheme-handler/ftp=firefox.desktop
x-scheme-handler/chrome=firefox.desktop
text/html=google-chrome.desktop;firefox.desktop;
application/x-extension-htm=google-chrome.desktop;firefox.desktop;
application/x-extension-html=google-chrome.desktop;firefox.desktop;
application/x-extension-shtml=google-chrome.desktop;firefox.desktop;
application/xhtml+xml=google-chrome.desktop;firefox.desktop;
application/x-extension-xhtml=google-chrome.desktop;firefox.desktop;
application/x-extension-xht=google-chrome.desktop;firefox.desktop;
-------------------- END FILE-----------------------------