I recently learned about a browser extension (for FF/chrome) that offers very granular control over which kinds of request your browser allows.

It's initially daunting, but it has a tutorial that I find fairly easy to understand. If you, like me, are a computery security nut who thinks that web security is a dumpster fire that isn't worth trying to put out because the incentives are too monumentally misaligned to be significantly changed before some global web securitastrophe annihilates the whole system and everybody who uses it, the sole bright spot being that the sewer mutants who rebuild the Internet might, hope of hopes, look back at the coordination problems that resulted in the designs of Webs 1, 2, 3, and 4.0, and have the collective self-discipline to avoid them; then I recommend it!