From January 9th, 2020 to September 14th, 2022, 100% user give 5-star rating. for Spoiler Specs chrome extension.
It's the perfect thing for if you watch something that tends to have a lot happening at once, I personally used it for watching One Piece, because sometimes even seeing a certain character can spoil most of an episode.
I've only tried it on Hulu, but it works! THANK YOU!