From internal leaks within the company as well as external analysis, the tip of the iceberg behind Facebook’s spyware empire is exposed. Take a look to better protect yourself when you’re not even on the platform: https://simplifiedprivacy.com/facebooks-corrupt-off-platform-surveillance/
There are lots of ways to stop them from tracking you but getting the hardened Firefox profile and fine tuning to it uBlock origin to block 3rd party apps and JS is a good start. I also have plug-in to container my interactions with that company if for some reason I do need to go there to look something up.