How do I make ALL pop ups in Firefox open in a new tab rather then a new window?

Solution 1:

I found the correct solution via a similar (but slightly different) question:

  • Type about:config * into the address bar.
  • Dismiss the warning.
  • Change browser.link.open_newwindow.restriction to 0. (and make sure browser.link.open_newwindow is set to 3 which is the default)

* SU won't let me hyperlink to about:config?

Solution 2:

I use the Tab Mix Plus extension for this. It has tons of options for tweaking tabs to work exactly how you want. I have it set to "single window" mode which makes everything open in a new tab, no matter what.