In Firefox, Ctrl-Shft-K, you may need to set the option by clicking on the wheel and going to bottom left, checking the box that says screenshot or screencapture (my browser is set to Dutch, I do not know the exact wording they used). Then everytime you hit Ctrl-Shft-K you simply hit the camera button and the page as is is captured and saved instantly It can be fooled, imgur for example will not properly capture,but few sites take measures. Windows 7/8/10 also have a capture tool as standard. Pause video, capture, save, eBay and few other sites will instantly jump to grey screen or black, workarounds exist but will not work anymore on Kaby Lake cpu's because of the DRM. This is where Ctrl-Shft-K sometimes will work. Upload to imgtc, copy paste the link. Easy. Even easier viewing if you paste the direct link.