Tamper Firefox <SIMPLE>

For the average user, stick to standard Firefox + uBlock Origin. But if you want to disappear in the crowd, learn about:config , maintain your own user.js , and accept that some websites will ask "Are you a robot?" a little more often.

Last updated: 2026-04-14. Firefox version 130+. tamper firefox

| Symptom | Likely Cause | Fix | |---------|--------------|-----| | Google Maps shows wrong location | privacy.resistFingerprinting | Add maps.google.com to an exempt container or toggle pref to false . | | Videos won't play | media.autoplay.default (set to 5) | Change to 0 or use uBlock's per-site toggle. | | Cloudflare CAPTCHA loops | privacy.resistFingerprinting + strict ETP | Temporarily lower Enhanced Tracking Protection to "Standard" for that site. | | Fonts look weird | privacy.resistFingerprinting blocks local font enumeration | Accept the aesthetic; or disable RFP for that session. | For the average user, stick to standard Firefox