Turn VNN "Dark"
This, and other addons like it, turn the white/light-colored part of your browser page dark, making it much easier on the eyes to view the site, especially in the nighttime.
This particular one is called "Dark Reader" for Firefox. Made a big difference in the physical and neurological effects of the big, bright LED-LCD monitor on my eyes.
"Put an ax into the hands of young, strong Jews and Jewesses and let them earn their bread in the sweat of their brow, for it is not fitting that we Goyim toil while they idle away their time behind the stove, feasting and farting." -Martin Luther