How to capture a portion of your screen when taking a screenshot on Mac.How to take a screenshot on Mac of any open app window or menu.

How to get a full screen capture on Mac with the Screenshot app.How to access the Screenshot app in macOS.Simply drag the Screenshot item (the cutting scissors icon) to the toolbar, then click Done. A special tab will open, where you can drag and drop items in or out of the overflow menu and the toolbar. Click the Menu button (three lines) in the top-right corner of the browser window. Tip: You can also customize the Firefox toolbar to add a Screenshot button.

Note that in step 4, you can drag or click on the page to select a region and then save just that region by clicking Download, or you can save just the visible area of the page by clicking Save visible in the top-right corner. The file will be saved to the same folder you use as Firefox's default download location.

In the framed capture that appears, click either Copy to copy the image to your clipboard, or click Download to save the image PNG file to your hard drive.

To capture the entire webpage, click Save full page in the top-right corner of the browser window.

Now right-click (Ctrl-click) anywhere on the webpage and select Take Screenshot from the contextual menu.

Scroll down to the bottom of the webpage in question so that any images set to lazy-load are displayed in full.

Launch Firefox on your Mac and visit the website from which you want to capture a full webpage as a screenshot.

Download and install Firefox from the Mozilla website (it's free).

While Safari for Mac doesn't include an equivalent feature, fortunately Firefox does, so if you want to capture full webpages in macOS, you can do so easily by following these steps. In iOS, Apple's Safari browser includes a built-in screenshot feature that lets you capture entire webpages on your iPhone or iPad for sharing elsewhere.

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