On 22/12/2025 16:17, Richard Owlett wrote:
I'm a tri-focal wearing octogenarian with vision/perception issues.As I started out in days of Netscape Navigator I eventually ended using SeaMonkey, having over the years chosen settings that accommodate my needs.As Firefox comes as default browser with Debian Linux, I use it as my backup browser when a website chokes on my default settings and/or SeaMonkey itself.I have problems with its defaults for the vertical scroll-bar. I asked on alt.comp.software.firefox. I was told to modify about:config . Suggested settings were: layout.testing.overlay-scrollbars.always-visible true widget.non-native-theme.win.scrollbar.use-system-size false widget.non-native-theme.scrollbar.style 4 widget.non-native-theme.scrollbar.size.override 20 I had no qualms about the first. But Firefox has a warning when you access about:config saying:Proceed with Caution Changing advanced configuration preferences can impact Firefox performance or security.Based on having decades in engineering support I paid attention. I don't know the implications of "non-native-theme" and "win" above. Asking for pointer to Firefox documentation I was told "Don't worry..."
https://support.mozilla.org/en-US/products/firefox would seem to be the starting place.
Suggestions? TIA
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