If you are a newbie to Firefox or if you want to explain to your Grandma how to use secured Firefox browser, Mozilla created detailed how to video on using Firefox. You can  find this video on Mozilla support website also.

How to Use Firefox and get most out of your browser

This video covers Firefox’s  tabbed browsing, awesome bar functionality, switching between search engines from search bar, setting your homepage, bookmaking pages, clearing private data / browser history, about private browsing, adding more features to Firefox with their add-ons, about malware and phishing protection,  dressing up Firefox with themes or personas.