جميل

非常好用，大大提升浏览器使用体验

Indispensible, have used it for years.
Only one flaw: Does not sync settings across devices. Only minor, but would be nice.

How do you run/activate other addon by using "Send message to other add-on"?

In Github there are 3 example but none show how to just run addon.

Simply amazing. Just a small flaw: would it be possible to have a command to find text on the page (Ctrl+F)?

pretty good，very convient！