Disable zoom with mouse wheel in Firefox

System Administration

Open Firefox.  In the address bar type in about:config and press Enter. Click I’ll be careful, I promise.  Type mousewheel.with_control.action in the Search bar at the top of the about:config page.  Double-click mousewheel.with_control.action from the Preference Name column.  Enter the number 0 in the dialog box.  browser.gesture.pinch.in (cmd_fullZoomReduce -> empty string) browser.gesture.pinch.out (cmd_fullZoomEnlarge -> empty string) Click OK.  In order to disable multi-touch pinch zoom-in and zoom-out repeat the procedure as previous one and set: browser.gesture.pinch.in & browser.gesture.pinch.out to false. Alternatively you could try setting zoom.maxPercent & zoom.minPercent to 100…read more