How to increase the width of vertical scroll bars

Help
1

I’m running Ubuntu 24.04 with Ubuntu Studio on top, so I have a KDE Plasma desktop.

I find it difficult to keep my cursor inside the very thin vertical scroll bars in apps such as Firefox etc.

I’m not sure how to increase the width of the scroll bar - in Ubuntu there is a .css file (actually 2 files) in the gtk3 and gtk4 folders to which I have added

scrollbar {
min-width: 15px;
min-height: 15px;
}

But this doesn’t seem to have any effect -does anyone have any suggestions please?

2

I think scrollbars are static inside of the Breeze theme, though i have little knowledge of actually modifying css or theme files and behaviour directly

Klassy has a modifiable scrollbar width in its Application style, though

1 Like
3

Thanks for the reply - it’s not important enough for me to want to change themes - I just thought there might be something simple in the appearance settings, but thanks for the response….

4

what is the output of kinfo

your description of your OS seems weird to me, so i just want to see what is actually running.

such control is likely going be an application by application basis unless you want to install klassy or some other kind of theme manager with more options and the plasma default

5

This is the outout from kinfo:

Operating System: Ubuntu 24.04
KDE Plasma Version: 5.27.12
KDE Frameworks Version: 5.115.0
Qt Version: 5.15.13
Kernel Version: 6.8.0-87-lowlatency (64-bit)
Graphics Platform: offscreen
Processors: 4 × Intel® Core™ i3-4340 CPU @ 3.60GHz
Memory: 15.5 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 4600

I installed Unbuntu 24.04 first, then ran Ubuntu Studio Installer as that way I wouldn’t have all the unnecessary graphics and video packages which I didn’t need with the full Ubuntu Studio install……

6

I checked in Firefox and there is an option within the config file to change the scrollbar width:

To change the scrollbar width in Firefox, go to about:config and set the preference widget.non-native-theme.scrollbar.size.override to a desired number, or change widget.non-native-theme.scrollbar.style to 4 for a classic, wider scrollbar

7

You can change the scrollbar width in Thunderbird by adjusting settings in the

about:config editor, such as modifying widget.non-native-theme.scrollbar.size or widget.non-native-theme.scrollbars.style.