<blockquote> I have forgotten my cogeco, email PW accessed through the Thunderbird account. </blockquote> There is no such thing as a "Thunderbird account". Thunderbird is an application running on your device, so it does not provide email addresses, nor the service to transmit emails. But Thunderbird can be used with your existing email address and service provider to send, receive, sort and search your email messages. Therefore you'll have to check with your email provider (Cogeco) about password reset options.