Offline Mode, a tool that lets you easily disconnect your browser from the internet, is now available for Chrome and Edge. 

It is very easy to use. Simply install it on your browser. Once installed, you will see a toolbar button. Click it to turn the browser's offline mode. If the button is OFF, it will be light grey, and you can turn it ON with one click. When the addon is enabled, the icon on the browser's toolbar will turn dark grey.

Once you toggle the offline mode, all internet requests will be blocked.