Firefox Configuration Guide for Privacy Freaks and Performance Buffs
One thing not mentioned in the list is Firefox Multi-Account Containers [1]. It helps by segregating your on-line information (cookies) into separate containers that you set up.<p>It doesn't stop sites pulling all cookies, but it reduces the amount of information being sent: only the information in the same container is accessible.<p>[1] <a href="https://addons.mozilla.org/en-US/firefox/addon/multi-account-containers/" rel="nofollow">https://addons.mozilla.org/en-US/firefox/addon/multi-account...</a>