There are many programs to make a screen capture, either free or paid. Every screen capture software that has the same function to capture a screenshot. There are different types of screen capture programs, either desktop or web based base that usually is an add-ons or extensions of a browser like Firefox or google chrome.
If you prefer to make a screen capture using the internet browser then you can try Google Chrome Screen Capture Extension. But if you prefer to make a screenshot of the desktop then you can use Ducklink Screen Capture, why? OK I will explain about this software.