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This article has includes steps to enable or unblock SSL so that you can securely connect to websites, like banks, that use HTTPS.

Secure Sockets Layer (SSL) lets you securely access websites. Websites that use SSL such as banking sites and online stores will have "https" at the start of their address. If Firefox can't access a secure site, it will show an error page saying: {note}An error occurred during a connection to ''(site name)''. Can't connect securely because the SSL protocol has been disabled. (Error code: ssl_error_ssl_disabled){/note} This article will describe how to enable SSL in Firefox if you get this message. * If you additionally receive the message "''Could not initialize the application's security component''", see [[Fix the "Could not initialize the application's security component" error message]]. * For any other errors, see [[Websites don't load - troubleshoot and fix error messages]]. __TOC__ = Check your SSL settings = {for not fx23} # [[T:optionspreferences]]. # Select the {menu Advanced} panel. # Click the {menu Encryption} tab. # Verify that '''Use SSL 3.0''' and '''Use TLS 1.0''' are check marked. #* If both boxes are check marked, this section does not apply. You can skip to the next section. #* If both '''Use SSL 3.0''' and '''Use TLS 1.0''' are not check marked, check mark both of them. # [[T:closeOptionsPreferences]]. {/for} {for fx23} # [[T:aboutconfig]] # Type '''security.enable''' in the Search field. #* If both {pref security.enable_ssl3} and {pref security.enable_tls} are set to {pref true}, skip to the next section. #* If both {pref security.enable_ssl3} and {pref security.enable_tls} are set to {pref '''false'''}, double-click each of them to set it to {pref true}. {/for} Try to access a secure site again. If it still doesn't work, continue in the next section. = Check your proxy settings = Some computers are configured to access the Internet through a proxy. # [[T:optionspreferences]]. # Select the {menu Advanced} panel. # Click the {menu Network} tab. # Click {button Settings…}. #* If '''Manual proxy configuration''' is selected, you are using a manually configured proxy server. Verify that all protocols listed in the dialog box are pointing to the address of your proxy server. Contact your network administrator if you don't know this address. #* If '''Manual proxy configuration''' is not selected, this section does not apply. You can skip to the next section. # Make any changes, and click {button OK} to close the Connection Settings window. # [[T:closeOptionsPreferences]]. Try to access a secure site again. If it still doesn't work, continue in the next section. = Security software = To use SSL protocol, Firefox needs to make a connection to itself. Some security software can block this connection. For information on how to configure security software to allow Firefox the access it needs, see [[Configure firewalls so that Firefox can access the Internet]]. = Problem with a specific site = You can [http://weblogin.bu.edu/troubleshooting?cmd=ssl test your browser] for SSL functionality. If your browser passes the test, the problem may be specific to the site you're trying to access. <!-- MZ credit --> <br/> <br/> '''''Based on information from [http://kb.mozillazine.org/SSL_is_disabled SSL is disabled (mozillaZine KB)]''''' [[Template:ShareArticle|link=http://mzl.la/MxVdgG]]