Capture images larger than screen size - FireShot

Especially useful for Large Google maps, this Firefox plugin is extremely useful at capturing large screen shots beyond the scope of the monitor resolution.

FireShot is a Firefox extension that creates screen shots of web pages.

Unlike other extensions, this plugin provides a set of editing and annotation tools, which let users quickly modify web captures and insert text annotations and graphical annotations. Such functionality will be especially useful for web designers, testers and content reviewers.

It’s possible to choose whether you want to capture entire web page or take screen shot of only visible part of the web page.

Grab the Firefox extension: FireShot