|Developer(s)||The Tor Project and the Electronic Frontier Foundation|
|Stable release||4.0.2 / 15 October 2014|
|Preview release||5.0development.0 / 28 July 2014|
|License||GNU GPL v3+ (most code is v2 compatible)|
|Alexa rank||18,698 (April 2014)|
|As of||April 2014|
HTTPS Everywhere is a free web browser extension for Google Chrome, Mozilla Firefox and Opera, a collaboration by The Tor Project and the Electronic Frontier Foundation. Its purpose is to automatically make websites use the more secure HTTPS connection instead of HTTP.
HTTPS Everywhere was inspired by Google's increased use of HTTPS, and is designed to make HTTPS less difficult to use. 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. The EFF provides information for users on how to add HTTPS rulesets to HTTPS Everywhere, and information on which websites support HTTPS.
A public beta of HTTPS Everywhere was released in 2010, and version 1.0 was released in 2011. Version 2.0.1 for Firefox was released in February 2012, and a beta for Google Chrome was released at the same time. Version 3.0 was released in October 2012.
The SSL Observatory is a feature in HTTPS Everywhere introduced in version 2.0.1 which analyzes public key certificates to determine if certificate authorities have been compromised, and if the user is vulnerable to man-in-the-middle attacks. The ICANN Security and Stability Advisory Committee (SSAC) notes that the dataset used by the SSL Observatory often treats intermediate authorities as different entities, thus inflating the amount of certificate authorities. The SSAC criticizes SSL Observatory for potentially significantly undercounting internal name certificates, and notes that it uses a data set from 2010.
Two studies have recommended building in HTTPS Everywhere functionality into Android browsers. In 2014, a version was released for Android phones. In 2012, Eric Phetteplace described it as "perhaps the best response to Firesheep-style attacks available for any platform". In 2011, Vincent Toubiana and Vincent Verdot pointed out some drawbacks of the HTTPS Everywhere plugin, including that some services are still only available through HTTP, 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.
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- HTTPS Everywhere Development Electronic Frontier Foundation
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- "1 SSAC Advisory on Internal Name Certificates". ICANN Security and Stability Advisory Committee (SSAC). 15 March 2013.
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