i'm making a list of pages that display all screwed up in firefox(may be an esr thing):

https://www.livescience.com/
https://www.space.com/
https://finance.yahoo.com/
https://www.sciencedirect.com/unsupported_browser (Your browser is outdated. check supported browsers)
https://blog.mozilla.org what the hell mozilla! i'm using your browser. update my browser to read a blog? why?
https://www.economist.com (when did this happen?! i used to read this site!)
https://www.tomshardware.com
https://www.techradar.com
https://www.tomsguide.com
https://www.forbes.com
https://github.com (this site is definitely messed up in firefox. look at any repo)
https://substack.com (firefox no. tested in palemoon but loads really slowely. no thanks)