You can't (at least currently) allow / block extensions by container. The security and ease-of-use is simply a separate storage for sessions / cookies / etc fo

You can't (at least currently) allow / block extensions by container. The security and ease-of-use is simply a separate storage for sessions / cookies / etc for each container. Nothing more, nothing less. If you're concerned about privacy and leaking information there are a TON of tweaks you can do to about:config or via a user.js file such as: https://www.ghacks.net/2015/08/18/a-comprehensive-list-of-firefox-privacy-and-security-settings/ https://www.ghacks.net/2015/08/18/a-comprehensive-list-of-fi...