firefox-developer-edition

https://www.mozilla.org/en-GB/firefox/developer/

https://developer.mozilla.org/en-US/Firefox/Releases

Firefox browser that offers cutting edge developer tools and latest features like CSS Grid support and framework debugging.

This package installs Firefox in English. You can add languages after the installation by navigating to https://addons.mozilla.org/de/firefox/language-tools/ .

kw: Mozilla i686

Mozilla Firefox license 2.0