Tor browser updating
To learn more about HTTPS Everywhere, visit: By default, No Script blocks active (executable) web content, which a user can wholly or partially unblock by whitelisting a site or domain from the extension's toolbar menu: Sites can be set as 'allowed', 'trusted', or 'untrusted', and the whitelist persists between sessions.Temporarily allowed sites won't by added to the permanent whitelist, and work only until the browser session ends.Regularly consult the Tor Project blog to stay in tune with Tor / Tor Browser news and the latest release information. However, only Tor Browser provides protocol level cleanup, which includes unique features like proxy obedience, state separation, network isolation, and anonymity set preservation.In stark contrast to regular browsers, Tor Browser is optimized for anonymity and has a plethora of privacy-enhancing patches and add-ons.Active content may consist of Java Script, web fonts, Java, Flash, Silverlight, and other plugins.The add-on also offers specific countermeasures against security exploits. This is based on the assumption that malicious websites can use these technologies in harmful ways.While traffic is encrypted throughout the Tor network, the exit relay (third of three servers) can see traffic sent into Tor if it is plain HTTP.
I used to run it on Ubuntu 12.04, but since I upgraded to 13.04 it wouldn't.For instance, sites may default to unencrypted HTTP or fill encrypted pages with links that return to the unencrypted version of site.The HTTPS Everywhere extension addresses these problems by rewriting all site requests to HTTPS.As a consequence, past encrypted communications and sessions cannot be retrieved and decrypted if long-term secrets keys or passwords are compromised in the future by adversaries. Tor developers have considered the security and anonymity benefits of this configuration, even though No Script blocking is disabled (Java Script is enabled) in Tor Browser by default (see footnote).
HTTPS Everywhere is a Firefox extension shipped in Tor Browser and produced as a collaboration between The Tor Project and the Electronic Frontier Foundation.
HTTP webpage contents can also be modified on their way to the browser for malicious purposes.