While it does seam to work (haven't had translated videos in a while), it does also slow down video load by a lot. Sometimes half a minute per video load. Maybe an issue with some combination of other YT plugins I have. But when this plugin is enabled it is definitely part of the cause. Disabled, videos load fast, in seconds. Other plugins I use: ublock origin, Sponsor block, youtube repeat button, return youtube dislike, remove youtube endcard, blocktube, auto high quality for YT. I don't want to rate it low, that wouldn't be fair, but obviously there is some issue.