One of the browsers I’m using on Windows is Safari and I found an interesting tweak for it, that makes popup links open in a new tab instead of a new window. Now I can’t credit the person who discovered this, because I lost the link, but here’s what you do. Go to C:\Documents and Settings\User\Application Data\Apple Computer\Safari\Preferences\ where User is your Windows username. Open the file com.apple.Safari.plist for modification and insert the lines below somewhere within the tag.