Install ghoestry, then you can just easily block tracking and see what it's blocking etc.Just had a nose at Firefox extensions and this looks handy:
Firefox Multi-Account Containers
As well as Firefox's in-built private browsing, the above can run multiple sessions inside of the browser. They used their main example of separating work-related from non work-related. If social media was ring-fenced inside of one sessions, the rest of the browsing could be in the other session?