5 Card DrawExtension recommendations for privacy
You could use forks of firefox like mull or librewolf instead.
Use Tor Browser if you need anonymity, which isn't offered by private browsing mode or most other extensions. In case you don't want to route through the Tor network, Mullvad Browser offers the same fingerprinting resistance techniques as Tor Browser.
Easy_FoxTor browser is just too slow for a normal user, I would just recommend it for some special occasions or sketchy sites where you truly do not trust it.