just found this from a tumblr post sadly from the github it seems to have been abandoned in 2018 and doesn't run on firefox mobile which is a shame since i prefer mobile, i suppose it will encourage me to read on desktop more XD

you're a life saver.

If you read on AO3 at all, I CANNOT recommend this ENOUGH! So helpful not having to look at certain things anymore! :D

It's so helpful!! I can know which fics I've read as I'm scrolling through tags or author's pages, and which ones I might want to reread (based on the star rating I gave it).

I also am using this on 3 different devices, and the sync is a bit tricky at first, but works great once you've set it up initially.

I was using this for chrome for a while and it was absolutely perfect. No complaints. But I recently switched to firefox bc chrome shit the bed, and i can't figure out how to work this extension the same. i can rate individual fics on the ao3 website, but i can't get to the page where i can blacklist tags, which is a real shame bc i used the hell out of that feature. if anyone could help it would be appreciated.

What happened???! I lost all my ratings! Thousands of them! I'm heartbroken. When you read this much fanfic, the only way to save yourself from getting halfway through a fic and realizing you've already read it, is something like this. But only if it works!!!