If a website requires a secure connection that cannot be established, Firefox will not connect and will show you an error page. Learn more.
Firefox automatically updates itself by default but you can always do a manual update. Learn how to update Firefox on Windows, Mac or Linux.
Learn about the basic features of Firefox (bookmarks, tabs, search, add-ons, page actions and more) and find links to more articles to explore.
The Firefox "Page Info" window gives you details about the page you're on. You can also use it to change permissions for the website.