Nimbus Screenshot - Take screenshots and record video from your screen
ksnip - Ksnip is a Qt based cross-platform screenshot tool that provides many annotation features for your screenshots. - DamirPorobic/ksnip
FireShot - Capture web page screenshots in Firefox, Chrome, or IE, and then edit and save them.
Evernote Web Clipper - Clip, don't bookmark. Web Clipper is a browser extension that lets you save any web page, article, or image into Evernote. Download now.
Firefox Screenshots - Take, save & share screenshots without leaving Firefox
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...