Using Chromium instead of Chrome?

[Anthony]

Hello Everyone,

I have both Chrome and Chromium installed on my machine. I have Chromium
set up as the default browser which usually has worked as expected.
However, when I click a link in Thunderbird, it opens up in regular
Chrome instead of Chromium. Any idea how I can change this behavior?

I've already looked at the "Preferred Applications" section of the
Settings Manager and it says Chromium is set as the default browser. Do
I need to change something else?

Using Fedora 18 with XFCE.

Thanks,
Anthony