AngScope is a
„Simple Firebug extension that allows you to inspect the AngularJS scope that a DOM element binds to.“
Just do a right click on the DOM element you want to inspect and select „Inspect Angular Scope„:
This gives you a direct access to all elements of the scopes of your Angular.js application:
You can find the extension here.
Thank you, that is really helpful.
BTW your link is for the German FF extension site
https://addons.mozilla.org/en/firefox/addon/angscope-simple-angularjs-s/
is the English one.