a while back i wrote a post about sharepoint and firefox...i saw a trackback to this in a forum indicating a lot of rant for microsoft not including this support. in my original post i made reference to a partner that was enabling this for firefox users. the link is in the post but i'll make it here again.
telerik and cross-browser editor for sharepoint 2007
done. get it (free btw) and install it. they have a doc to help you configure/install.
there, so no more complaining :-)