control scrolling speed in webpages in firefox

Question

i recently started using Ubuntu.

i noticed that two finger scrolling in webpages is very fast. much faster than windows. i am using Firefox browser. any idea how to decrease the speed.

Answer 1

Open a new tab in Firefox, and enter into the address bar: about:config.

There may be a warning about the sensitivity of the advanced settings within, accept the risk and proceed.

There will be a search bar at the top, search for:

mousewheel.default.delta_multiplier_y

The default value seems to be 100. Change it to something like 30, and save with the checkmark on the right.

The updated scroll speed should be experienced immediately.

Mind you, this setting seems to influence both the mouse's scrollwheel and the two-finger scrolling on the touchpad. I don't know how could one configure the two independently from each other.

Answer 2

As @Levente pointed out you should use mousewheel.default.delta_multiplier_y to a value like 30, don't forget to do the same for the x value, mousewheel.default.delta_multiplier_x.

However, if you want you mouse wheel to control the same you should also change mousewheel.min_line_scroll_amount from 5 to 180, althought personally, I found 120 to be more confortable for me.

This bug has been reported already a couple years ago here, so all we can do is wait until they fix it one day.

https://bugzilla.mozilla.org/show_bug.cgi?id=1610477 https://bugzilla.mozilla.org/show_bug.cgi?id=1752862

Answer 3

Assuming you run Wayland, try disabling mousewheel.system_scroll_override.enabled and apz.gtk.kinetic_scroll.enabled in about:config. Some report it working in Xorg too.
Straight from this Framework laptop forum.

Answer 4

Go to settings via the menu (three bars) and search for "scroll". And you will see an option for 'smooth scrolling'.

If you want a custom speed for scrolling, you can use the 'smooth scrolling' firefox Extention.