I suspect this has nothing to do with Fedora, but if you will indulge me
for a moment:
In FF N, for N < 3.5, I used to click on a URL in (say) a mail message,
and get a new browser window. However when I clicked on a URL from
within a browser window, I got a new tab. This was how I liked things to
work.
In FF 3.5beta this fine distinction seems to have been lost. The
preferences setting "open new window as tab" applies universally. Since
I keep my mailer and my browser on different desktops, this means that
every click from the mailer switches desktops, whereas previously I
would just get a new browser window on the *same* desktop.
If anyone knows a magic setting to fix this, I'm all ears. Otherwise I
guess I'll report it upstream.
poc