HTTPS Everywhere is a Firefox, Chrome, and Opera extension that encrypts your communications with many major websites, making your browsing more secure. Encrypt the web: Install HTTPS Everywhere today.


Mobile

Android + iOS: Included in Brave! Android + iOS:
Included in Brave!
Android: Included in Tor Browser for Android! Android:
Included in Tor for Android!
iOS: Included in Onion Browser! iOS:
Included in Onion Browser!

HTTPS Everywhere is produced as a collaboration between The Tor Project and the Electronic Frontier Foundation. Many sites on the web offer some limited support for encryption over HTTPS, but make it difficult to use. For instance, they may default to unencrypted HTTP, or fill encrypted pages with links that go back to the unencrypted site. The HTTPS Everywhere extension fixes these problems by using clever technology to rewrite requests to these sites to HTTPS. Information about how to access the project's Git repository and get involved in development is here.

HTTPS Everywhere now uses the DuckDuckGo Smarter Encryption dataset, to enable even greater coverage and protection for our users. 

Original announcement can be found here: https://www.eff.org/deeplinks/2021/04/https-everywhere-now-uses-duckduckgos-smarter-encryption

Further technical details on how we utilize Smarter Encryption: https://github.com/EFForg/https-everywhere/blob/master/docs/adrs/bloom-filter-rule-signing.md

Visual explanation of how HTTPS Everywhere works

 

Webmasters and prospective contributors: Check the HTTPS Everywhere Atlas to quickly see how existing HTTPS Everywhere rules affect sites you care about! HTTPS Everywhere is governed by EFF's Privacy Policy for Software.

Problems Installing: Some people report that installing HTTPS Everywhere gives them the error: "The addon could not be downloaded because of a connection failure on www.eff.org." See this FAQ entry for help.

Feedback: If you want to send us your comments, please email extension-devs@eff.org.

Questions and Caveats

Sadly, many sites still include a lot of content from third party domains that is not available over HTTPS. As always, if the browser's lock icon is crossed out or displays a "not secure" label, you may remain vulnerable to some adversaries that use active attacks or traffic analysis. However, the effort that would be required to eavesdrop on your browsing should still be usefully increased. Answers to common questions may be on the frequently asked questions page. HTTPS Everywhere can protect you only when you're using sites that support HTTPS and for which HTTPS Everywhere include a ruleset. If sites you use don't support HTTPS, ask the site operators to add it; only the site operator is able to enable HTTPS. There is more information and instruction on how server operators can do that in the EFF article How to Deploy HTTPS Correctly.

Development And Writing your own Rulesets

If you'd like to write your own update channel for rulesets, you can find out how to do that here. Information about how to access the project's Git repository and get involved in development is here. Send feedback on this project to the https-everywhere AT eff.org mailing list or our Github discussions forum. Note that this is a public and publicly-archived mailing list. You can also subscribe. Send fixes to existing rewrite rules to the https-everywhere-rules AT eff.org mailing list or submit an issue with an existing ruleset on our Github repository. Note that this is a public and publicly-archived mailing list. You can also subscribe.

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