How can you upload a profile pic?

On the right side, (very top of the screen, right next to the notifications,) there should be 3 lines you needa click on. Once you click on it go to settings, and you should be able to.

here you go https://www.mangago.zone/read-manga/mangago_how_to_guide/uu/br_chapter-5781/pg-1/

Thank you!