Also included are instructions to change your password in the Thunderbird Password Manager.

Mozilla Thunderbird usesPOPorIMAPto receive emails andSMTPto send emails.

Change the password to yourGmail,Yahoo Mail,Windows Live Hotmail, or other email account.

A person clicking Enter New Password button on Thunderbird Mail

Lifewire / Theresa Chiechi

Close Thunderbird, then re-open it.

SelectGet Messagesin the upper-left corner of the Mozilla Thunderbird toolbar.

Depending on your configurations, Thunderbird may automatically attempt to retrieve new mail as soon as you launch it.

The Get Messages button

You should receive a login-error alert followed by a pop-up window requesting you to sign in.

slide in your new password.

Your account should synchronize like normal.

A new login screen in Mozilla Thunderbird

In some circumstances, your incoming and outgoing emails use a different set of credentials.

If this is the case, repeat the steps above for your outgoing account, usually calledSMTP.

SelectSecurity>Passwords>Saved Passwords.

The Options menu

Right-tap the email server you want to edit and selectEdit Password.

If theEdit Passwordoption is grayed out, selectShow Passwords.

Enter the new password in thePasswordsfield.

The Options command

SelectCloseto return to the previous screen.

The Save Passwords button

The Edit Password command

The Password field