To help prevent this kind of accident several web browsers include an option that warns you if you try to close the browser when multiple browser tabs are still open. While it’s possible to reopen the web pages that were previously open before the browser was closed, any data that had been typed in will be lost and you’ll have to start over. This can simply happen if you close the browser by accident by pressing X to close the window or the Alt+F4 shortcut. Whether this is typing into an online form, commenting on a blog/forum, or writing an online document, it’s not fun when everything is wiped away. One of the most common causes for frustration when using a web browser is accidentally losing data you have typed into the page.
