gnat sized mouse pointer Ubuntu Firefox
Same issue as [this poster] . I've seen no correlation between pixelsPerPx and cursor size, but have noticed this behavior doesn't occur in Manjaro's version of FireFox, so I started asking myself, Self, "what might the differences be here?" Answer I got back: they (Ubuntu 22.04) have bowed to the god of SNAPpiness, and Manjaro still hasn't (gets updates from Mozilla rather than the snap store).
Am I on to something here? What else could be the difference between the two flavors of Linux? Any help would be greatly appreciated, my tired eyes have forced me to change default browser to Chrome or Edge, both of which don't seem to respect my privacy like Firefox. Interesting to note that Thunderbird doesn't have the "flea-size cursor" and it also is not using snap for updates.
Modified by cor-el
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Do you also have a high definition (4K) display?
You can set layout.css.devPixelsPerPx to 1.0 (default is -1) on the about:config page. Adjust its value in 0.1 or 0.05 steps like 1.1 to enlarge or 0.9 to reduce until icons/text looks right. You may need values above 2.0 if you have a high resolution display but make sure not to use values too large or too small.
- modifying layout.css.devPixelsPerPx affects user interface and webpages (global zoom)
Firefox has a Zoom section in Settings to set the default zoom level for webpages.
- Settings -> General -> Language and Appearance -> Zoom
You can open the about:config page via the location/address bar. Clear cookies the button to "Accept the Risk and Continue".