textbrowser

Completed. :P

This is a nice idea. Thanks.

Your other question. My initial assessment is that the copy fails because of JS.

js: Uncaught (in promise) NotAllowedError: Write permission denied.

That is the notice produced. :) Will look at it. Perhaps it can be corrected.

I thought some more about your second question. Of course there is a solution: Access Clipboard. 

I hope to complete this after the April release. :)

Many changes. :) Did you test them?

> Many changes but all of a kind. I tested most of them, including all menu and toolbar actions, but do please inspect the diff carefully to be sure I...

Aw shucks. Thanks you.