How can I make YouTube always choose the lowest quality by default?

Question

YouTube

I have a slow computer (and a lot of tasks running at the same time), a weak connection and I am completely unpretentious about the quality of the picture (especially because I mostly listen to music and all sorts of lectures there), but the slowdown and sticking of the picture are annoying. Can I somehow make it so that from all available quality options for each new opened clip, by default, the smallest one is always immediately selected (240p or 140p if any)? I've tried some Chrome extension that does the opposite (forcing HD), but allows you to choose any preferred resolution - no effect, YouTube's built-in settings for "weak channels" default to 480p (although there are almost always smaller options). You can just choose manually each time, you can download the video and watch it with a normal player (which is many times more efficient, than browser-based Flash (HTML5 generally crashes after a few seconds of browsing, and it works no better than Flash)), but constantly doing it somehow soars. What do you recommend (other than replacing the computer)?

Answer 1

In account settings: I have a slow connection. Do not play videos in high quality

Answer 2

Install Firefox, and add YouTube ALL HTML5 to it:
https://addons.mozilla.org/ru/firefox/addon/youtub...
There, in the settings, you can play via HTML and 360p. There is no faster option.

Answer 3

YouTube Center
Works great, I recommend it. Extension for Firefox and some other browsers.
It is better to install from github, where the author fixes the extension more quickly after changes on youtube.