Does anyone know why when I right-click on a link (just tested on SE links for now) in FF 4.0 and pick the 'Open Link in New Window' option that the new window just comes up empty?
The 'Open Link in New Tab' option works just fine.
There is a Mozilla forum question on these lines,
I have used Firefox 4 on Windows XP and Ubuntu Lucid till now without seeing this problem.
So, I presume you are using Windows-7, in which case you should tag your question as such.