Do you want to force links that open in a new window to open in a new tab instead? The answer is pretty simple.
- Type the following in the url bar: about:config
- Edit the following variables:
- browser.link.open_external -> 3
- browser.link.open_newwindow -> 3
- browser.link.open_newwindow.restriction -> 0
- If any of those variables is not yet defined, simply right click and select ‘new->integer’, enter the variable name then its integer value.
- Go to: tools -> internet options
- Then make sure you select ‘always open pop-ups in a new tab‘ under ‘when a pop-up is encountered‘