Getting an issues in mozilla thunderbird login means you won't access your inbox so you can't fetch emails and attachments, contacts, etc. mostly this issues arises due to forgot or lost password but there are no need to get soo worried, Mozilla thunderbird have a such a wonderful way to get recovery your lost password once again. you can again get your lost password just launch the mozilla thunderbird application and go to the tools and click on show password. now you get the password of mozilla thunderbird. If you are getting troubles in sign in due to change master password then you have to also change password here now you can get sign in to your mozilla thunderbird account. If you have any troubles related mozilla thunderbird password recovery just contact mozilla thunderbird customer service and technical support toll free phone number and get instant solution of your problems. for more info visit http://www.mytechtoll.com/mozilla-thunderbird-customer-service.php