widen scrollbars in Ubuntu 18.04 (Gnome) especially in Firefox
UPDATE: Solution to make Firefox’s scrollbars wider as of 2022
go to about:config
in the search bar.
Find widget.non-native-theme.scrollbar.size.override
and set it to something like 20.
(I rather liked the extra fat scrollbars i got with 30 but as i left them on autohide it would sometimes cover an element that i needed to click when i moved over there.)
I tried the stuff in https://askubuntu.com/a/827213/95056
… no effect yet, will check back in after a restart.