Ok, so here is the list:
- Ublock Origin – The best ad/spy blocker to use, if you choose only one extension, choose this one.
- Firefox Multi-Account Containers – Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs that preserve your privacy.
- Cookie Quick Manager – An addon to manage cookies, this one is pretty decent.
- Temporary Containers – Pretty much what it says, its like firefox containers, but then just to temporary visit a website and its cookies are gone once the container is closed.
- Privacy Badger – EFF Tracking blocker.
- HTTPS Everywhere – Encrypt the web!
- Country Flag + – Display server country in url bar.
Other plugins not from the mozilla plugin store: