If so, there is an immediate solution available on the Facebook mobile site. This is a lightweight, mobile browser optimized app that can give you almost everything that the Facebook app can give you, including notifications. If you use an outdated version of the browser on your computer to access Facebook, you may want to update your browser to the latest version. The first thing we usually try when Facebook stops working is to lower the page of the application screen to update it. In case this does not work, the next solution is to exit and restart the Facebook application.