From: daviddschool on
Firefox - new windows, lag time, about 20 seconds before the new
window shows - any ideas?

This is a recent phenomenon - whenever I use Firefox and try to use
CNTL N or open new window (or if a link takes me to a new window),
there is sudden lag time of about 15-20 seconds before it appears.
Not sure why. Going to post in the firefox forum as well. Any ideas?