I am trying to adjust the Firefox smooth scroll settings using about:config in order to achieve smooth scrolling like the default settings in Internet Explorer 11. Is this possible? Do you know which values to change, and what values to change them to?

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2 Answers

I've been attempting to get the same settings too. It seems the behavior can't be copied exactly just by tweaking the values since Edge uses some acceleration parameters that are not in Firefox.

However, here's the best I found.

general.smoothScroll.mouseWheel.durationMaxMS = 100
general.smoothScroll.mouseWheel.durationMinMS = 100
general.smoothScroll.pages.durationMaxMS = 100
general.smoothScroll.pages.durationMinMS = 100
general.smoothScroll.pixels.durationMaxMS = 100
general.smoothScroll.pixels.durationMinMS = 100
general.smoothScroll.scrollbars.durationMaxMS = 100
general.smoothScroll.scrollbars.durationMinMS = 100
general.smoothScroll.stopDecelerationWeighting = 1

Here's an explanation of all the values.

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This error seems to have resurfaced with Firefox 82 (Oct 2020). These seems to be the problem values:

general.smoothScroll.mouseWheel.durationMaxMS 200
general.smoothScroll.mouseWheel.durationMinMS 50

Reverting to these previous values seems to have resolved the issue:

general.smoothScroll.mouseWheel.durationMaxMS 400
general.smoothScroll.mouseWheel.durationMinMS 200

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