I have used #firefox for years and years
and in the last few versions, the slider at the right hand side of the page, that lets you slide up and down ?
it is way to narrow
Discussion
nostr:npub1qjssl23udvrumdyrj0qw0ds5vp7rpdapy94kz2pptvrshxnhmy6qurxp6v You can fix this by going into about:config in your address bar.
Put the following in the top:
widget.non-native-theme.scrollbar.size.override
Then change the number from 0 to something higher for the scroll bar width. I recommend trying 20 first and going from there.