-
Sign into your profile and open an album you'd like to delete,
-
Open Developer Tools > Console (
Ctrl+Shift+I
on Chrome, Windows), -
Paste the
main.js
and press enter, -
Proceed to your work, while keeping the tab open in your browser.
Note: the code works with the new Facebook design only, as for 2020 October. Unless Zuck changes the design/structure again, this will work.