How can I force a specific website to always open in a specific container? I cannot find it.
Another example: clicking the information icon for any site in Chrome allows me to quickly enabled/disable permissions. Have a site that is loading really abusive Javascript? In Firefox, there's no way to disable JS for the page outside of using your adblocker or globally disabling it. In Chrome, just click the site icon, click the Javascript menu, and choose disable.
https://gist.github.com/FichteFoll/903baad8447ce83e81dee1789...
Regarding multiple tabs, I use this: https://addons.mozilla.org/de/firefox/addon/multiple-tab-han... It also cooperates with Tree Style Tab (since it's from the same developer)