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An unintended keystroke combination reduced the display to 2/3 of the screen (NOT F11) leaving the right-hand side black in only one tab (other tabs are ok).


Windows 7, Firefox 17.0

Solved! Thanks Tyler

Modified by arnesson

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.5 r502
  • Next Generation Java Plug-in 10.9.2 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • VLC media player Web Plugin 2.0.2
  • 5.1.10411.0


  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20100101 Firefox/17.0

More Information

Tyler Downer
  • Administrator
  • Moderator
1165 solutions 6641 answers

Chosen Solution

Font size and zoom - increase the size of web pages try to reset the zoom to 100%