If you’re looking for a quick way to take notes on your PC, while searching on internet. This trick works because of HTML’s “contenteditable” attribute that can turn any part of a web page into an interactive area for editing text. You can use it in Google Chrome, Mozilla Firefox and Opera.
Type this into your browser’s location bar: data:text/html, <html contenteditable>
Hit Enter, start typing directly in your browser window. The reason this works is that it uses the Data URI scheme to make a simple HTML page with the element, “contenteditable.” If you decide you want to save it, you can do so in your browser and it will save as an HTML file but not in text format.
It will not work such as your basic text editor like notepad. but suppose when you working, studying on internet and want to make some notes on temporarily. This can be useful trick.