If you’ve set your Facebook default page to the speedier Facebook Lite and have found that it will no longer allow you to open your homepage on Facebook, it can make for a frustrating day. While all looks lost, you can change the default back to the Regular Facebook by following these steps.
1. Open your web browser and go to http://lite.facebook.com/settings/defaultsite/.
2. When the page opens, select the Regular Facebook radio button beneath When I go to Facebook.com, show me.
If you no longer want to deal with Facebook Lite, uncheck the Let me switch between Regular Facebook and Facebook Lite checkbox.
3. Click the Save button.
You should now be able to open your Facebook homepage and all is well.