So you were browsing the internet using Google Chrome for some time and you find that you cannot type anything on a comment box, text box, or text areas etc. You think of restarting your browser, then what happens to the web pages you visited? you go back to your history, and reopen all closed tabs back again, ohhh, that’s a mess.
The easiest way I have been doing is open a new Chrome Window.
CTRL+N to open a new Chrome Window
After you do that, close it and go back to the window you were using, now you can type whatever you want to.
This has happened to me many times, during work I spend most of the time browsing on the Internet using Google Chrome. So this is the quickest solution for this bug.