How to Fix Left Folder Pane Missing on Thunderbird?

How to get back missing left folder pane on Thunderbird email application? How to fix left folder pane missing Mozilla Thunderbird? Folders left pane disappeared from Thunderbird how to get it back? The left hand panel of my email display disappeared in Thunderbird?
#thunderbird

[@PatTraynor]

It seems so simple, but if you don't know how to do it, it's awfully frustrating. Thanks for the help!

[@simonb5793]

Was pulling my hair out trying to fix this, and then found this video which resolved the problem in 30 seonds. Thank you, whoever you are 👍

[@palleturuabbaiye2068]

You made my day buddy.....😍😍😍 Lv u sooo much.....😘😘😘😘

[@smartenoughtech]

you are welcome

[@jayora9303]

I followed your video, but there's no folder pane in the list.