Thanks, but I do like it to be easily switchable. Some pages expect certain background colors and changing them makes embedded svgs hard or impossible to see.
Maybe you can get away with using the solarized theme, but I prefer having a black background...
Thanks for this suggestions anyway
Re:Firefox is back. It's time to give it a try
by unexistance on Monday June 25, 2018 @08:44PM
(#17397102)
You can change the universal background color to anything :D that is just a guide
heck, I'm using a black background nowadays, trying to mimic blackboard color ha
http://unexistance.blogspot.com/2014/09/of-firefox-solarize....
in which all background & foreground color are of your choice. been using it for 5 years at least