Horizontal Scroll Wheel on Might Mouse is just a bit too sensitive and binding it to forward and back will drive you batty in no time. To fix this,in Firefox type about:config in the address bar. Change the following settings:

  1. mousewheel.horizscroll.withnokey.action to 0
  2. mousewheel.horizscroll.withnokey.numlines to 1
    (determines horizontal scrolling speed; adjust to your preference.
    Higher values mean faster; negative is possible to reverse direction).
  3. mousewheel.withnokey.numlines to 3
    (determines scrolling speed, adjust to your preference)
  4. mousewheel.withnokey.sysnumlines to false

3 Responses to “Mighty Mouse Firefox Scrolling”

  1. Dave Vacanti says:

    Thanks a lot for this tip. I was having this annoying problem because I can’t configure the mighty mouse with OS X.3.9 and this totally fixed it.

  2. Yes, thank you for this!

    –Kynn

  3. karl says:

    cheers it was driving me batty

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