Firefox is a waste of global resources. Move everything back to TTY.
Don't use Firefox, use Lynx.
Better yet, boycott http etc entirely.
Gopher or die.
Why are you still using a backlit display? Pipe your terminal into a passive character LCD and go to bed when the sun goes down: https://www.youtube.com/watch?v=hsOaahWFfug
Alt-ASCIIart image for those already on a 20x4 display (modified to fit in a 20x4 display):