This plugin (Language Reactor) works with YouTube as well, you should try it. + Target and native captions in parallel. + Translate any word on hover (more on click). + Hotkeys to repeat, move to previous/next segment. + Pronounce single word. - Moderate downside that it's not possible to select and translate multiple words. I hardly use LingQ with this plugin, it's more immersive and much allows you focus on listening even more (which is good).