| Preference | Set to | What it does | |------------|--------|---------------| | datareporting.healthreport.uploadEnabled | false | Disables main telemetry upload. | | browser.newtabpage.activity-stream.feeds.telemetry | false | Kills new tab page tracking. | | browser.ping-centre.telemetry | false | Disables Mozilla's Ping Centre. | | network.trr.mode | 3 | Enforces DNS-over-HTTPS only (no fallback to plain DNS). | | security.ssl.enable_ocsp_stapling | false | (Optional) Increases privacy at very minor security cost—hides which certs you checked. |
Create a second Firefox profile (via about:profiles ) called "Unlocked" with no hardening. Use it only for websites that refuse to work with your tampered main profile.
The term "tamper Firefox" refers to any unauthorized or malicious modifications made to the Mozilla Firefox web browser, potentially compromising its security, functionality, or user experience. These alterations can be made by malicious actors, software, or even by users themselves, often with unintended consequences.