ZeroBlur is an extension for Google Chrome that will let you censor and blur specific areas of your screen, thus avoiding showing personal data during meetings and video calls. Once you have installed the extension on your browser, you'll have two options to cover your data: select specific HTML elements (proper names, addresses, messages) or obscure an entire area of your screen by dragging the cursor until it covers all the elements you want to cover. You'll also have the ability to obscure specific elements on all the pages of a given domain - for example, choosing to hide your username on every page you open on a site.