Might have use-able in the past. Search terms are undefined on all torrent sites now.

this new link is still a virus dont trust this

@letterboxd-lover is right, I'm the creator of this extension you can find it here: https://github.com/pypp/letterboxd-services/
and I accidentally linked the wrong domain of 1337x, I don't have access to this mozilla account due to 2fa, so for you safety just clone the repo and use that addon instead of this one. thank you @letterboxd-lover for making me aware of this mistake

stopped giving option to add YTS button

mwah, who ever made this i love u

Very good. I was developing a similar extension and then a found this one. Works like a charm.