Nimbus Screenshot - Take screenshots and record video from your screen
Firefox Advance - Experimental recommendation engine built into Firefox
ksnip - Ksnip is a Qt based cross-platform screenshot tool that provides many annotation features for your screenshots. - DamirPorobic/ksnip
Actually Read It Later - Save articles for reading later
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.
ShareIt by SocialPilot - Free Content Curation and Influencer Discovery Tool