How to Set Up a Firefox Proxy for Better Privacy and Access? or Is Using a Firefox Proxy the Best Way

Thanks for all the tips, folks! Tried the DNS flush and firewall tweaks—no luck yet.

Gonna test FoxyProxy later today.

Quick Q: Anyone know if IPv6 could mess with firefox proxy settings? Saw a random forum post about it.

PS: Appreciate the help! Will update if anything works.