Disable Pop-ups in Firefox

When using Firefox sometimes I like to use certain websites that have pop up windows. I don't like having multiple firefox windows open so it is a lot easier and fits with my sytle.

It is really simple as always most things in Firefox are easily changed in about:config.

Ok so it is simple, go to about:config.

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browser.link.open_newwindow = 3
browser.link.open_newwindow.restriction = 0

After that all windows will be forced into a new tab instead of a new window no matter what. At least in my experience so far.