Show popup on bad/missing signature

[rugk]

If there is a signature error, can you somehow show a popup? Or safely inject a popup into the website? (Safely, so that the website cannot remove it.)

Or maybe the easiest thing would be to do it like adblockers sometimes do (uBlock Origin e.g.) and redirect to an own internal site of the add-on, which then displays a warning.

[tasn]

The redirect is a great idea! I'll take a look into implementing that.
Thanks!

[rugk]

Just look at uBlocks source code or so… 😄