ff2mpv VS simple-translate

It is. And you can use it in your (desktop) browser with an add-on: https://addons.mozilla.org/en-US/firefox/addon/ff2mpv/

FWIW there is a GitHub repo [0] which keeps track of currently-working ways to block Twich ads. If you don't need chat, ff2mpv [1] can be used to send streams directly to MPV by right clicking on them in the browser. This bypasses the entire proprietary Twitch frontend and displays a silent purple screen during ad breaks.

[0] https://github.com/pixeltris/TwitchAdSolutions

[1] https://addons.mozilla.org/en-US/firefox/addon/ff2mpv/

Unfortunately this won't work with the extension playwithmpv unless you modify the python server to launch a different command. I personally use ff2mpv and I modified the python code of the backend to make this change. If you are interested, this is what I changed on ff2mpv:

There are also browser extensions that add a toolbar button and a link context menu option to automatically open videos from quite a number of popular sites in MPV. I'm using ff2mpv. It only took a minute to set up.

You can use a browser extension like ff2mpv to send the urls directly from your browser (so no need to type into the terminal). This works not only in youtube but in many sites as yt-dlp has support for multiple pages.

If Firefox still uses too much CPU, then I recommend ff2mpv -- It does require changing your habits a bit, like blocking autoplay and clicking ff2mpv to launch the video in mpv when you're ready to watch, but it is well worth it.

With Firefox, use the extension ff2mpv to play anything supported by youtube-dl with mpv player.

Other plugins still work with this plugin but not with Reader View. I cannot select-and-translate a text with Simple Translate in Reader View.

On my laptop I use a browser extension called Simple Translate https://simple-translate.sienori.com/ It gives a short and simple translation in a small box that pops up instantly when a word or phrase is highlighted.

Simple Translate does that in PC, but I couldn't find an android app that does that. When I write something from my language, it translates to English, when I write English, it translates to my language. Any app like that?

Simple Translate 2.7.2 https://simple-translate.sienori.com

(there's an extension for that)

As for the translation, I can recommend the Simple Translate addon. It adds a handy right-click option to translate the whole page, or to translate the selected text in a hover-popup thing.

Or use simple translate