Go to OSX Daily to read How to Take a Full Web Page Screen Shots on Mac the Easy Way
Need to take a full web page screen shot on the Mac? There’s a very easy way to do it, but it does not include using the Mac screenshot tools since the feature is not currently available in macOS. Not to worry though, as we have a very easy approach to capture full page screenshots of websites.
The simplest way to take full page scrolling screenshots on a Mac is, currently, to use the Firefox web browser. Firefox offers the most direct way on the Mac, though you can also take full page screenshots on Mac with Safari, and with Chrome too, and even with paid…
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