DNSSEC Firefox

DNSSEC

Check the DNSsec status of every website you browse.

Features & Capabilities

The DNSSEC Chrome extension provides a simple way to check the DNSSEC status of every website you visit. It displays in your browser's URL bar whether the domain's DNS zones are signed and secure with DNSSEC, helping users stay informed about website security. To perform DNS queries, the extension currently uses Cloudflare's 1.1.1.1 or Google Public DNS services, ensuring accuracy but noting some privacy implications.

Future updates plan to support custom DNS over HTTPS services, enhancing privacy and user control. This user-friendly tool is essential for anyone concerned about DNS security and verifying the authenticity of visited web domains seamlessly.

User Growth & Download Statistics

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Antoine POPINEAU
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/dnssec/

User Reviews

Pros
  • Works well for DNSSEC validation
  • Simple user interface
  • No extra steps to install
  • Helpful for enhancing security against DNS manipulation
  • Positive feedback indicating improvement over time
Cons
  • Limited to only Cloudflare and Google as DNS resolvers
  • Inaccurate results reported by users
  • Privacy concerns due to reliance on external resolvers
  • Cannot verify local domains properly
  • Some users experienced complete failure of the add-on functionality
Recent reviews
This used to work fine, but now reports 100% of websites as "not secure by DNSSEC" when using Cloudflare as the resolver. Setting it to Google solves the problem. Ultimately though this extension needs support for custom DoH resolvers.
by Ær*****, 2025-06-12

While cloudflare.com/ssl/encrypted-sni/#results tells me that "DNSSEC. Attackers cannot trick you into visiting a fake website by manipulating DNS responses for domains that are outside their control," this extension claims that "cloudflare.com not secure by DNSSEC. Domain www.cloudflare.com is not secure through DNSSEC. Your connection is prone to man-in-the-middle attacks."
by Ko*****, 2024-08-18

Results inaccurate when choosing Cloudflare as the resolver, but can be worked around by choosing Google as the resolver. No option for custom resolver or even native recursive resolution.
by Wo*****, 2024-06-11
View all user reviews ›

Is DNSSEC Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

DNSSEC requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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  • High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
  • High ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

DNSSEC has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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Best DNSSEC Alternatives

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