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. Show 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  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 . Questions and CaveatsSadly, 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 RulesetsIf 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. HTTPS Everywhere
HTTPS Everywhere is a free and open-source browser extension for Google Chrome, Microsoft Edge, Mozilla Firefox, Opera, Brave, Vivaldi and Firefox for Android, which is developed collaboratively by The Tor Project and the Electronic Frontier Foundation (EFF).[4] It automatically makes websites use a more secure HTTPS connection instead of HTTP, if they support it.[5] The option "Encrypt All Sites Eligible" makes it possible to block and unblock all non-HTTPS browser connections with one click.[6] Due to the widespread adoption of HTTPS on the World Wide Web, and the integration of HTTPS-only mode on major browsers, the extension will be retired at the end of 2022.[7] Development[edit]HTTPS Everywhere was inspired by Google's increased use of HTTPS[8] and is designed to force the usage of HTTPS automatically whenever possible.[9] The code, in part, is based on NoScript's HTTP Strict Transport Security implementation, but HTTPS Everywhere is intended to be simpler to use than NoScript's force HTTPS functionality which requires the user to manually add websites to a list.[4] The EFF provides information for users on how to add HTTPS rulesets to HTTPS Everywhere,[10] and information on which websites support HTTPS.[11] Platform support[edit]A public beta of HTTPS Everywhere for Firefox was released in 2010,[12] and version 1.0 was released in 2011.[13] A beta for Chrome was released in February 2012.[14] In 2014, a version was released for Android phones.[15] SSL Observatory[edit]The SSL Observatory is a feature in HTTPS Everywhere introduced in version 2.0.1[14] which analyzes public key certificates to determine if certificate authorities have been compromised,[16] and if the user is vulnerable to man-in-the-middle attacks.[17] In 2013, the ICANN Security and Stability Advisory Committee (SSAC) noted that the data set used by the SSL Observatory often treated intermediate authorities as different entities, thus inflating the number of certificate authorities. The SSAC criticized SSL Observatory for potentially significantly undercounting internal name certificates, and noted that it used a data set from 2010.[18] Continual Ruleset Updates[edit]The update to Version 2018.4.3, shipped 3 April 2018, introduces the "Continual Ruleset Updates" function.[19] To apply up-to-date https-rules, this update function executes one rule-matching within 24 hours. A website called https-rulesets was built by the EFF for this purpose.[20] This automated update function can be disabled in the add-on settings. Prior the update- mechanism there have been ruleset-updates only through app-updates. Even after this feature was implemented there are still bundled rulesets shipped within app-updates. Reception[edit]Two studies have recommended building in HTTPS Everywhere functionality into Android browsers.[21][22] In 2012, Eric Phetteplace described it as "perhaps the best response to Firesheep-style attacks available for any platform".[23] In 2011, Vincent Toubiana and Vincent Verdot pointed out some drawbacks of the HTTPS Everywhere add-on, including that the list of services which support HTTPS needs maintaining, and that some services are redirected to HTTPS even though they are not yet available in HTTPS, not allowing the user of the extension to get to the service.[24] Other criticisms are that users may be misled to believe that if HTTPS Everywhere does not switch a site to HTTPS, it is because it does not have an HTTPS version, while it could be that the site manager has not submitted an HTTPS ruleset to the EFF,[25] and that because the extension sends information about the sites the user visits to the SSL Observatory, this could be used to track the user.[25] Legacy[edit]HTTPS Everywhere initiative inspired opportunistic encryption alternatives :
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