typed fonts are still 15 though 

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Panda only thing, Zenith Parent and Snowy Mountain look the same. They look more like a snowy mountain. lolI tried Vivaldi before reading yours, then checked back with FF and now both show...
View attachment 6709
Thanks but it still has no effect on the fonts on CFS. They keep reverting back to size '15'.For Firefox only - Click on the "Open Application Menu" (the three horizontal lines at the far RIGHT end of the navigation bar). From the drop down menu, select "Settings". In the "Settings" screen, scroll down to "Fonts and Colors". Select "ADVANCED". From the drop down menu, Set the font size to your choice and at the bottom of that "Advanced Menu" UNCHECK the box that says, "Allow pages to select their own, etc...." Hit OK and close out the settings screens.
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Minimal Blue works fine but my CFS fonts keep reverting back to ‘15’ regardless of my settings.Tested it on my Windows 10, Firefox 97.0.1 with CFS scheme 'Minimal Blue' - works fine.
No idea whey your system is acting the way that it is...
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