No effect in Android. :(
Type also: unblock Copy protection in the addon Info for better finding

I love it. Now I can copy paste from Japanese grammar sites without getting a hernia.

Android works, but does not work on Windows

На Android работает, а на Windows не работает

Works as described on Android after restarting the browser.

You must restart your browser for the changes to take effect.
I gave it four stars because I just installed it,
and I haven't yet been able to test it thoroughly.

It doesn't work on Android!

Works. But if you wanna know how it works use Stylus extension and go to https(:)//uso(dot)kkx(dot)one/browse/styles and search for user-select blocker

Funktioniert nicht.

FF on Android. Allows text selection on comments on YouTube dot com without any hassle. thanks.