Rating 5 stars because this feature is invaluable, and I've been happy to donate to the extension's development. This extension made giant strides since a few years ago; I almost don't need to disable it to unbreak sites. The performance could have been better, though.

love this thank you for 12 years.

its good, it helps me read at night

I stand corrected for me previous review: one website that was giving me the biggest of troubles was attempting to do its own dark-mode, saw this app working: and both doubled down and looped in itself, creating weird artifacts that (Well, I think I was seeing the matrix..).
Whitelisted the site, reset the website to use its own darkmode, and everything works great again.

One point I bring back from my previous 3-star review: "this extension is my go-to plugin for every system I use Firefox on". Really, I value a good dark filter over ad-blockers.