This repository hosts the source code for Stampy, a simple unix timestamp to readable date converter extension for Chrome and Firefox.
You can install stampy via the Chrome Web Store or Firefox Addons page. Alternatively you can download the latest release from the releases page and install it manually.
Once you have installed the extension open up any web page and click the stampy icon. Any timestamps will be converted into readable dates for you. For instance the text 1574266854 will become 20/11/2019 @ 4:20:54 PM (UTC) or similar, depending on your browser's locale settings. To clear any modifications this extension makes just reload the page.