Signed Pages

Signed Pages

Verifies PGP signed pages for extra security against malicious or breached servers.

Signed Pages promo image
What is Signed Pages?

Signed Pages is a browser extension that verifies the authenticity of web pages using PGP signatures, providing extra security against malicious or breached servers. It allows users to protect their data by ensuring that the code delivered to their browsers comes from trusted sources.

Stats date:
By: Tengu
Users: 52 ▼ -3
Rating: 4.33 (3)
Version: 0.5.0 (Last updated: 2020-11-30)
Creation date: 2017-12-27
Weekly download count: NaN
Firefox on Android: Yes
Manifest version: 2
  • storage
  • webNavigation
  • webRequest
  • webRequestBlocking
  • <all_urls>
Size: 805.01K
Email: Click to see
URLs: Website
Risk impact: High risk impact
Risk likelihood: Low risk likelihood

Other platforms

Not available on Chrome
Not available on Edge

Signed Pages is a browser extension to verify the authenticity (PGP signature) of web pages.


This extension was originally created to improve the security of the EteSync web app ( One of the biggest issues with securing web applications is the fact that the app (JavaScript) is delivered to you every time you open the page. This means that a malicious (or compromised) web server could change the code to steal your supposedly client-side-only and secure data.

This extension solves this by verifying the code really came from the developer. While this doesn't protect you from a malicious developer, it at least brings the security of the web app to a similar level to that of native apps.


All you need to do is install the extension, and from its settings page, add patterns to match pages you'd like to verify, and their corresponding publisher's public key. The developers of those websites must have their pages signed for this extension to work.

Example pages

You can try the following example pages to see how the extension behaves:

See more
User reviews
The Preferences page is not particularly easy to understand. Perhaps a sidebar of URIs, which when selected, display their certificate would be superior.
by rokejulianlockhart, 2023-02-03
View all user reviews
Risk impact

Signed Pages is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install Signed Pages if you trust the publisher.

Risk likelihood

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

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