Evolution email links will not open firefox in fedora 12 (KDE)

[vk4tux]

Have been trying to resolve this problem for hours using;

gconf-editor to set /desktop/gnome/url-handlers /http & https
to command: firefox %s

gnome-control-center to set;
preferred applications>Internet>Web browser to firefox %s

However on-click email link I get;

¨Could not open the link.¨
¨Operation not supported¨

I am at a loss to get this working. I used thunderbird before with no issues,
but needed a microsoft-exchange email server for my work account,
supported by evolution.

Kernel Info;

2.6.31.12-174.2.3.fc12.i686.PAE

KDE: 3.5.10-21.fc12 Fedora

Any help appreciated.

vk4tux