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How do I stop multiple web browser windows opening


How do I stop multiple web browser windows opening? some sites open firefox behind the one Im using. so when I close firefox I find another one is hiding behind it with some add on it. how do I stop this????

Additional System Details

Sites Affected


Installed Plug-ins

  • Adobe PDF Plug-In For Firefox and Netscape
  • 1.9.0042.0
  • Default Plug-in
  • Shockwave Flash 10.2 r153
  • 4.0.51204.0
  • Next Generation Java Plug-in 1.6.0_17 for Mozilla browsers


  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv: Gecko/20110319 Firefox/3.6.16

More Information

  • Top 10 Contributor
  • Moderator
3195 solutions 24398 answers


  • Top 10 Contributor
  • Moderator
10749 solutions 96728 answers

You can use "File > Exit" to close all open windows at once to avoid such a surprise.

You can change these prefs on the about:config page to make all such windows open in tabs.