Firefox users have been able to open all links clicked within Firefox in a new tab for a while now, but what about us poor Safari users? Well, sure, you could always hold down command while clicking a link, but that's not fun, now is it? With this simple Terminal hack, you will be surfing like a pro!
Just open Terminal (/Applications/Utilities/) and type in the following command:
Once you restart Safari, all clicked links will open in a new tab. If you want to reverse the command for some reason, just replace "true" with "false."
defaults write com.apple.Safari TargetedClicksCreateTabs -bool true