'''Q:'''What OS are you using? Windows 10. MAC .Linux ? '''Q:'''What version of Thunderbird are you using ? '''Q:'''What is the make of the printer? eg: HP Office Jet Pro '''Q:'''Is the printer set up as the default printer on computer ? '''Q:''' When you do the following what happens: Right click on email and select 'Print ' This should open in same tab and show you the contents of what you want to print. Top right you will see 'Destination' which is the crazy name the developers decided to use and it means 'Choose Printer'. There is a drop down - click on it to locate the name of the printer and select the printer. Click on 'Print' button Please report back with information and any images that help explain the problem.