I am new to developing firefox browser extensions.

Development in a new environment is considerabilly easier with an interactive exploratory sandboxed platform. Front-end javascript already has such a platform: Web Developer Tools console. It's pervasive, easy to access and provides access to much of the browser's API.

Unfortunately, I can't find a way to access the browser API from the console. I believe it would be wonderful to be able to F12 to console and type browser.tabs.query() right away.

I foresee some security risks, so I assume it's protected or restricted in some way. So, my question is how can this support be unlocked?