This will modify the browser fringerprint making you more unique.
I would not install so many extensions as you're trusting a huge number of organizations/people with privileged access to your browser. Anything that modifies CSS, Document Object Model (DOM) will make your browser stand out.
We wrote a blog post about this: https://blog.privacyguides.org/2021/12/01/firefox-privacy-20...
That includes any extensions that modify what is requested etc. See:
https://github.com/arkenfox/user.js/wiki/4.1-Extensions
See https://www.privacyguides.org/desktop-browsers/#firefox, you really don't need to do anything more than that.
> Facebook Container
etc, not needed unless you login to multiple Facebook accounts.
> Disconnect
Not needed, you should enable Firefox's ETP Enhanced Tracking Protection, this includes anything on that list. https://support.mozilla.org/en-US/kb/enhanced-tracking-prote...