Firefox the privacy browser that is directly selling all its users searches to Google for decades? Not to mention all its other build in telemetry and ads.
If you want an actual private Firefox Browser use a fork like Mullvad Browser, LibreWolf and Tor Browser.
Mozilla with Firefox does not sell and does not have ads. You have downloaded a modified spyware version or have convonced yourself that this is true due to a bad dream. Take more care online is my advice yo you and don't spread false information either.
If you want an actual private Firefox Browser use a fork like Mullvad Browser, LibreWolf and Tor Browser.