Firefox – How to change the zoom increment in Firefox

firefoxzoom

How do I change the zoom increment that is used by Firefox whenever I zoom-in or zoom-out of webpages?

I find that the default zoom increment is a bit too big for my taste.

Best Answer

You can do this as follows (I tried it with Firefox 10.0.2 here):

  • Type about:config in the address bar
  • Filter for toolkit.zoomManager.zoomValues

This will show you the various zoom "steps" the browser has. The steps are specified as decimal numbers (representing precentages of the original, so .3 means 30% of original), separated by a ,. See Tweak Firefox 3 full page zoom for the details.

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