Do you ever browse Facebook without logging in? Maybe a friend sent you a link and you don't have a Facebook account or you're browsing a page while incognito for some reason. At these times Facebook will annoyingly tell you to log in or sign up.
Facebook Incognito is a browser extension which removes this overlay and let's you browse the pages unhindered.
- Go to this page on the Chrome Web Store
- Click "Add to Chrome" and accept the permissions
- Optionally go to the extensions page (
chrome://extensions) and tick the "Allow in incognito" checkbox. This will ensure the extension works in incognito windows too