On your iPhone, nearly all web browsers offer the option to request a site’s desktop version. When you use this feature, your browser loads the version of the site that you’d see on a desktop computer.
If you use Safari as your primary browser on your iPhone, it’s easy to get this browser to load Facebook’s computer version.
When the site is loaded, at the bottom of Safari, tap the share option (an up-arrow icon).
From the share menu, select Request Desktop Site.
Safari will reopen the Facebook site, and this time around, it’ll load the desktop version of the site.