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™
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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>).
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>).
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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.
More information
- Add-on Links
- Version
- 1.3.2
- Size
- 38.22 KB
- Last updated
- 4 days ago (Aug 9, 2026)
- Related Categories
- License
- Mozilla Public License 2.0
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection