Hi hiddensmiles, We have a whole section here on [https://support.mozilla.org/en-US/kb/how-do-i-install-firefox-and-get-started Getting Started with Firefox]. It should cover all the basics from downloading and install to using the core features. If you have other questions, be sure to search the Knowledge Base. There is tons of great information there. If you can't find your answer there, you can always ask the volunteers here on the forums. Hopefully this helps!

See also: *https://support.mozilla.org/kb/common-questions-after-updating-firefox *http://www.mozilla.org/firefox/features.html