https://addons.mozilla.org/en-US/firefox/addon/dark-background-light-text/?utm_source=addons.mozilla.org&utm_medium=referral&utm_content=search
I use dark reader but people say this one has better performance.
https://addons.mozilla.org/en-US/firefox/addon/dark-background-light-text/?utm_source=addons.mozilla.org&utm_medium=referral&utm_content=search
I use dark reader but people say this one has better performance.