Screenshot Master

Screen Master is a free, easy-to-use screenshot tool.
Make full page screenshots with ease.
How to use the extension:

1. Find the icon in the toolbar via the puzzle icon. 2. Make it always visible using the "pin" button.
2. Open a page.
3. Click the toolbar button
4. Wait sometime before the icon changes back
5. Find a new file in "Downloads". The file name is Screenshot_....

Please note: the tool doesn't work on internal pages and PDFs.