Firefox about:config Deep Dive – Advanced Privacy Settings 2025 Guide

Want to take Firefox privacy to the next level? In this video, we do a complete deep dive into **about:config**, the hidden advanced settings inside Firefox, to lock down tracking, fingerprinting, and silent leaks.

🔒 You’ll learn step by step how to:
✔ Disable WebRTC leaks (protect your IP even with a VPN)
✔ Stop DNS Prefetching & Link Prefetching
✔ Control Referer headers to reduce tracking
✔ Enable fingerprinting resistance
✔ Isolate cookies with First-Party Isolation
✔ Turn off telemetry and Pocket background connections

These advanced tweaks will make Firefox much more private and secure without sacrificing usability.

📌 *Follow along with the commands (search these in about:config):*
`media.peerconnection.enabled = false`
`network.dns.disablePrefetch = true`
`network.prefetch-next = false`
`network.http.referer.XOriginPolicy = 2`
`network.http.referer.XOriginTrimmingPolicy = 2`
`privacy.resistFingerprinting = true`
`privacy.firstparty.isolate = true`
`toolkit.telemetry.enabled = false`
`extensions.pocket.enabled = false`

⏱️ *Timestamps:*
00:00 Intro
00:30 Accessing about:config safely
01:02 Disable WebRTC (IP leak protection)
02:01 Stop DNS Prefetching & Link Prefetching
03:12 Control Referer Headers (reduce data leaks)
04:57 Resist Fingerprinting (make Firefox uniform)
05:53 Enable First-Party Isolation (cookie separation)
06:38 Disable Telemetry + Pocket Integration
07:48 Recap
08:03 Wrap Up & Next Steps

👍 If this helped you, hit LIKE, SUBSCRIBE, and SHARE this with someone who still uses default Firefox.

🌐 More privacy tips at Safe Web Life → https://safeweblife.com

Privacy First, always. 🛡️

#Firefox #aboutconfig #OnlinePrivacy #SafeWebLife