Capture a screenshot of the current webpage.
The SMArT extension will capture a screenshot of the page you are viewing (only what is viewable on screen) and store it on your computer. It will simultaneously record the timestamp, domain and a hash of the screenshot image to the zksync blockchain.
This extension is used to archive any screenshot and create a record of when and where it was captured. It is a great way to permanently save something you see on any web site, including social media.