User-agent:
Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20111115 Thunderbird/8.0
After struggling with Fedora+Bumblebee for days, I came to the
conclusion that it was far better to get a laptop with a decent video
card, rather than getting a laptop with two display cards.. Btw, I
never got it to work on Fedora. Probably because I never found the
winning combination of the ModulePath statements..