Compare Revisions

security

When accessing a site with SSLv3, Firefox will block it and display an "Unable to connect securely" message.

{for not fx34}{warning}'''Firefox versions 33 and lower:''' This article applies to newer versions of Firefox. If you are unable to use a newer version, install this [https://addons.mozilla.org/firefox/addon/ssl-version-control/ official Mozilla add-on] to disable SSLv3 immediately.{/warning}{/for} Starting with Firefox 34, Firefox will block Secure Sockets Layer version 3.0 (SSLv3) to protect your information from attacks. SSLv3 is a type of technology that some websites use to connect to a server. It is no longer secure, which makes it easy for hackers to extract your personal information during a connection. For more information, see [https://blog.mozilla.org/security/2014/10/14/the-poodle-attack-and-the-end-of-ssl-3-0/ this blog post]. =What happens when you access vulnerable sites= When you access a site that only supports SSLv3, Firefox will block it and display this message: ;[[Image:SSLv3]] <!-- L10N: you can make a screenshot on https://mtsindia.in/ --> If you see this message, please contact the website owner to let them know about the problem. =Additional precautions= To further protect yourself from attacks, keep Firefox [[Update Firefox to the latest version | up to date]]. The simplest way to do this is to set up automatic updates: # Click on the menu button [[Image:new fx menu]], then click {for win}{menu Options}{/for}{for mac,linux}{menu Preferences}{/for}. # Click the {menu Advanced} panel, then click the {menu Update} tab, and make sure that '''Automatically install updates''' is checked. {for linux} If you use your Linux distribution's packaged version of Firefox, there will be no Update tab in the panel. Instead, Firefox updates are managed by the Update Manager for your distribution, and any updates should be installed automatically. {/for}