About Config Settings

 About Config settings 

  for Mozilla Firefox 42.0, Cyber Fox 43.0 & 42.0, Ice Dragon 41.0.0.1, 44.0.0.1

• Type about:config in search box in browser

than press I'll careful, I promise!

• type browser.link in search Box than press Enter

1. change the value browser.link.open_newwindow default value 3 to change value 1
2. change the value browser.link.open_newwindow.restriction default value 2 to chage value 0