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Re:Comcast Explains Why NASA's Web Site Was Blocked Last Wee... by tptacek on Wednesday January 25, 2012 @03:08PM (#3511481)
No, a single feature that exploits DNSSEC validation is part of Chrome.

Securing DNS with "end-to-end authenticity for DNS data" is like securing the web by signing every individual web page.

Re:Comcast Explains Why NASA's Web Site Was Blocked Last Wee... by danyork on Wednesday January 25, 2012 @03:40PM (#3511630)
Plugins/extensions are available now for both Chrome and Firefox that provide a visual indicator in the address bar:

http://www.internetsociety.org/deploy360/resources/how-to-ad...

http://www.internetsociety.org/deploy360/resources/how-to-ad...

But, to your point, these are not built-in and require a user to actually install the extensions. And of course, a user can ignore the key icon (as some ignore the lock-in and SSL/TLS popups).