Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of SUP - Super Ultimate Privacy

SUP - Super Ultimate Privacy by tripID

Advanced, zero-data-collection privacy protection blocking trackers, Canvas and WebGL fingerprinting, and WebRTC IP leaks.

Available on Firefox for Android™Available on Firefox for Android™
0 (0 reviews)0 (0 reviews)
Download Firefox and get the extension
Download file
Scan the QR code to open this extension in Firefox for Android

Extension Metadata

About this extension
SUP (Super Ultimate Privacy) is a high-performance privacy extension designed to shield your online identity, block intrusive telemetry, and prevent cross-site tracking without breaking website layouts or functionality.

Built with a zero-data-collection philosophy, all processing occurs locally on your browser.

Key Features:

• Declarative Net Request (DNR) Blocker: Intercepts and blocks tracking domains, intrusive analytics scripts, and third-party trackers (Google Analytics, Facebook Pixel, Hotjar, Mixpanel, and more) at the network level.

• Non-Destructive Anti-Canvas Fingerprinting: Dynamically introduces subtle, offscreen noise into Canvas rendering methods (getImageData, toDataURL, toBlob), disrupting visual fingerprinting without breaking site UI, image editors, or QR code generators.

• WebGL & Hardware Masking: Spoofs WebGL GPU vendor/renderer strings via extension proxies while restricting system hardware enumeration (hardwareConcurrency, deviceMemory).

• Audio & Timezone Spoofing: Adds micro-scale random noise to AudioBuffer APIs to counter acoustic fingerprinting and normalizes the browser timezone output to UTC.

• WebRTC Leak Guard: Restricts non-proxied UDP traffic to prevent real local and public IP address leaks without impairing video conferencing services like Discord or Google Meet.

• Header Hardening: Automatically injects Do Not Track (DNT: 1) and Global Privacy Control (Sec-GPC: 1) headers alongside security enforcement headers (X-Content-Type-Options: nosniff, X-Frame-Options: SAMEORIGIN).

• Browser Hardening: Automatically disables network prediction, DNS prefetching, and hyperlink auditing (<a ping>).
Rated 0 by 0 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
0
4
0
3
0
2
0
1
0
No reviews yet
Permissions and data

Required permissions:

  • Block content on any page
  • Read and modify privacy settings
  • Access your data for all websites

Optional permissions:

  • Access your data for all websites

Data collection:

  • The developer says this extension doesn't require data collection.
Learn more
More information
Add-on Links
  • Copy add-on ID
Version
1.3.2
Size
38.22 KB
Last updated
4 days ago (Aug 9, 2026)
Related Categories
  • Privacy & Security
License
Mozilla Public License 2.0
Privacy Policy
Read the privacy policy for this add-on
Version History
  • See all versions
Tags
  • anti tracker
  • content blocker
  • privacy
  • search
  • security
  • user scripts
Add to collection
Report this add-on
Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Download

  • Download Firefox
  • Windows
  • macOS
  • iOS
  • Android
  • Linux
  • All

Latest Builds

  • Nightly
  • Beta

Firefox for Business

  • Enterprise

Community

  • Connect
  • Contribute
  • Developer

Follow

  • Instagram
  • YouTube
  • TikTok
  • Bluesky
  • Podcast
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version. Android is a trademark of Google LLC.