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Preview of OhMyECH - ECH Indicator

OhMyECH - ECH Indicator by 27justin

Add a visual indication whether a site uses ECH (Encrypted-Client-Hello), or not, to the address bar.

5 (5 reviews)
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About this extension
This extension adds an icon to Firefox’s address bar which indicates whether this page used Encrypted-Client-Hello (ECH) or not.

ECH is a extension to TLSv1.3 which encrypts the TLS Client-Hello. Before ECH any middle-man between your PC and the server was able to read out the SNI (Server-Name-Indication), i.e. the domain you were visiting.

The extension displays a green/red-lock to the right side of your address bar, similar to the HTTP(S) lock.

The source code for this extension is available at https://github.com/27justin/ohmyech
Rated 5 by 5 reviewers

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Permissions and dataLearn more

Required permissions:

  • Access browser tabs
  • Access browser activity during navigation
  • Access your data for all websites
More information
Version
1.1
Size
40.47 KB
Last updated
a year ago (Jun 30, 2024)
Version History
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Release notes for 1.1
* Added two new indicators for ECH state, orange and blue
Blue: when a page is initially loaded with ECH, but subsequent requests (images, AJAX, etc.) weren't, the lock will change colour to blue.
Orange: when a page isn't loaded with ECH, but a subsequent fetch used ECH.