The ability to capture full webpages screenshots is quite important for web designers, it is however not available in many screen capture tools. The following tools are designed to let you do just that (and sometimes more).
FireShot – Webpage Screenshots: Capture + Annotate is probably the most comprehensive tool taking screenshots. The first advantage is that Fireshot is available for most major browsers (Firefox, Internet Explorer and Chrome). Also, it allows for taking and managing multiple screenshots, you can even edit those images right into Fireshot. You can also very easily annotate your screenshots to share it by email, on social media sites or simply copy it to your clipboard.
If you don’t want to bother installing some software just for this single task, Capturefullpage.com will be handy for you. It allows to simply take screenshots of a full web page. To make it even more useful, try adding a custom search shortcut for that URL field if you are using Firefox.
3. Screengrab Firefox extension
Adds a little button to your browser with a drop-down option to grab the full-page, the visible part or just a selection. It can also be used anywhere in the page with a simple right-click. Get it on Firefox extension repository.
4. Webpage screenshot Chrome extension
For the Google Chrome users out there, this extension will let you save full web pages in a snap. In addition, the extension allows you to edit picture, write comments, draw on it and share it with your friends via Gmail. Who said awesome?
5. Paparazzi (OSX only)
A tiny app that does one thing, take full page screenshots. And yes, it’s free.