Can't turn off force SSL

XP SP3 Immunet antivirus
I never chose force SSL. It turned itself on and I can’t turn it off.
When I get this error:
Secure Connection Failed

An error occurred during a connection to SSL received a record that exceeded the maximum permissible length. (Error code: ssl_error_rx_record_too_long)

I click the padlock in the address box and click Don’t enforce SSL and then I get this error box:
[Javascript Application]
Type error: can’t access dead object

Update 09/09/2014
THANKS for NO help.
Resolved by Icedragon reset, which failed to preserve saved passwords.