I’ve been a Firefox fan for years. In my experience, Firefox just keeps getting better. I used to use the Firebug extension for developer tools, then Mozilla included native developer tools in Firefox 27, allowing me to run one less extension. The Eyedropper was added to Developer Tools in Firefox 31, which makes grabbing color codes from a site I’m developing a snap. Now, Mozilla has added Firefox Screenshots, which gave me another one of those “Oh, cool!” software-feature moments.
Communication with clients about web-related issues is often infinitely more clear when a screenshot accompanies a written description of the issue. With Firefox Screenshots, I can grab and crop a screenshot to include in an email to a client much faster than I could before.
I’ve worked with a number of clients who, though they may have known what a screenshot was, had no clue how to capture one. Now, if they’re using Firefox, it will be easy to tell them how to grab a screenshot.
At the time of this writing, Firefox Screenshots is still in testing, and not everyone will see the toolbar icon for it in their browser. There are also still some issues with Firefox Screenshots; for example, it doesn’t work in Private Browsing, and may break on pages with framesets, but for the most part, it works great, and it’s a real time-saver.
Edit 11/18/2017 – Just when I began to take the convenience of Firefox Screenshots for granted, the upgrade to Firefox 57 took the handy icon on the toolbar away; however, it has really only been moved. Screenshots is still there, and works just as well. To get to it, you have to click the Page Actions icon in the address bar or combined address and search bar. “Take a Screenshot” is now listed on the Page Actions menu.