How to configure Mozilla Thunderbird proxy?
Click on the "hamburger button" found on the top right of your Mozilla Thunderbird browser.
Select "Tools" and click "Options".
Go to the "Advanced" tab.
On the "Advanced tab", select "Network & Disc Space" tab and click on the "Settings" button.
Tick on "Manual proxy configuration" and configure your proxy information on the fields provided.
Hit "OK" when done.
Source website
Select "Tools" and click "Options".
Go to the "Advanced" tab.
On the "Advanced tab", select "Network & Disc Space" tab and click on the "Settings" button.
Tick on "Manual proxy configuration" and configure your proxy information on the fields provided.
Hit "OK" when done.
Source website
Updated on: 05/31/2018
Thank you!