If you have updated Firefox recently, you may have noticed that Take a Screenshot is missing from the page actions menu. Don’t fret. The feature is still in Firefox; it has just been moved.

Here’s how to find it…

You now have a button to take screenshots.

Of course, you can always right-click within a webpage and Take Screenshot will be part of the menu.

https://ilias.ca/blog/2021/04/the-screenshot-option-in-firefox-has-moved-heres-how-to-find-it/