This extension checks a content of a link instantly.
This extension shows contents of links. Audio, images, pdf and videos..., all of links which this extension supports need not to be clicked. You can check it by just putting on the link.
You can install this extension on this location.
Microsoft Edge: https://www.microsoft.com/store/productId/9NGD05CV97FD
Firefox: https://addons.mozilla.org/en-US/firefox/addon/smart-previewer/
Video and Screenshots of Microsoft Edge:
Video and Screenshots of Firefox:
