FireFox - Modify the default zoom levels

December 2016



Here's a simple tips to modify the default zoom levels (zoom-in/zoom-out) of Firefox.
  • Open Firefox.
  • In the address bar type the following command:
  • about:config
  • Click on the "I'll be careful, I promise..." button

For the Zoom in feature:
  • Look for the following entry: zoom.maxPercent
  • Double click to modify the value

For the Zoom out feature:
  • Look for the following entry: zoom.minPercent
  • Double click to modify the value


Related :

This document entitled « FireFox - Modify the default zoom levels » from CCM (ccm.net) is made available under the Creative Commons license. You can copy, modify copies of this page, under the conditions stipulated by the license, as this note appears clearly.