You have two bits of adware installed which may be interrupting communication with Gmail. To remove these, do the following:<br><br> #Click the orange Firefox button and then click "Add-ons".<br><br> #Click the Plugins menu and disable the following:<br> * Fun Web Products <br><br> * My Web Search<br> Consider updating to the latest secure version of Firefox which you can download from here if the problem persists: http://www.mozilla.com/en-US/firefox/fx/?ref=logo There's an explanation of the error you're seeing here: [http://www.carbonwind.net/blog/post/Firefox-may-return-a-ssl_error_rx_record_too_long-error-when-trying-to-access-certain-secure-web-sites-through-Forefront-TMG-2010-RTM-doing-Outbound-HTTPS-Inspection.aspx Secure Connection Failed] ---- '''N.B.''' I noticed that several of your normal plugins are out of date which exposes your system to attack. You can check which ones you need to update by visiting the plugin check page here: http://www.mozilla.com/en-US/plugincheck/