You might have taken lots of screenshots in your computer or your might have taken screenshots in Mozilla firefox. I recently needed a full page screenshot of a page and also wanted to crop it to get the desired height and width. I had a extension for taking fullpage or selected page screenshot in mozilla firefox but they didn’t offer cropping feature.
After searching a while I found out that Google Chrome has an awesome extension which not only helps in taking screenshots it also helps in cropping and adding some stuff to it. If you are webmaster then you will obviously like it. Even if you are not a webmaster sometimes you do need to show screeenshots of a website for a project or something else.

Install the extension from here.
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