Thanks for this tip goes to Dennis Stevense and also to TUAW.com for republishing the tip he posted to his blog. Sorry, Windows users, this only works in Safari 3.1 for the Mac.
Since switching to primarily using Safari on the Mac (yes, I still<3 Firefox, but Safari just looks and feels more native on the Mac), I have been irritated by the fact that while you can force some links to open in new tabs automatically, anything that is target=”_blank” will open a new Safari Window. Sure, there’s a great “Merge all Windows” feature, but that’s just not the same!
Thankfully, in Safari 3.1, there is a new hidden preference to make Safari open all links that target a new window in a tab. Just issue the following command:
defaults write com.apple.Safari TargetedClicksCreateTabs -bool true
Thanks, Dennis!
PS – If you want to reverse it, just issue the same command with false in place of true at the end of the line.