qSnap

qSnap by QASymphony is a useful screen capture add-on for everyone, especially for testers, developers, and even marketers. qSnap is totally free and is available for many popular browsers, including: Chrome, Firefox, Safari, Opera and Internet Explorer. With qSnap, you can choose to capture either visible screen or full screen, add annotations, import images, and automatically have multiple captures consolidated into a single and lightweight document. Your screenshots can be directly downloaded and printed or stored online using QASymphony's free hosting service. Sharing is easy with qSnap thank to integrated email and social networks, such as facebook, twitter and G+.