Prominent new features of Mozilla Firefox 50.0 include updated keyboard shortcuts for cycling through tabs in the recently used order (Ctrl+Tab), as well as for viewing a web page with the built-in Reader Mode (Ctrl+Alt+R on Linux and Windows or Command+Alt+R on macOS), and a new option for searching whole words only with the “Find in page” functionality. Firefox 50.0 brings support for the Guarani (gn) language, makes the WebGL (Web Graphics Library) accessible to more than 98% of Windows 7, 8 or 10 users, implements download protection for even more known executable file types on all supported platforms, and improves the performance for SDK extensions, as well as of the add-ons that use the SDK module loader.