New: BEST addon until W3C FINALLY adopts my draft at github... (github.com/WICG/proposals/issues/125)
Old: Addon setting "browserdesign" should be set to "default" by default, not "customized", because on customized it destroys all webExtension themes......

This extensions helped me a lot. I am very happy for finally getting this add-on, I had been finding this for a long time. Thanks! Alexander Shutau for this !

发现一个BUG 火狐92.0.1 中文搜索百度 在暗模式下 点不了搜索工具和设置
Found a BUG Firefox 92.0.1 Chinese search Baidu, in dark mode, the search tools and settings cannot be clicked

This extension is amazing. It doesn't always work 100%, but it's very consistent. It allows for a ton of customization with regards to contrast levels on different websites and throughout the whole web. Not only can you control differing levels on separate sites, you can also exclude websites, which is helpful when things start to bug out. I have been using this extension for over a year now and I love it.