ਐਨਡਰੋਇਡ ਐਡ-ਆਨ

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.