When you go to the Firefox start screen (home page), Firefox shows your top sites. Learn how to customize this page.
Firefox automatically bookmarks the start screen when installed.
Firefox displays websites on the Firefox start screen based on how frequently you visit each site and how recently you were there. You can easily pin, edit and delete the sites that show up on the Firefox start screen to customize it just the way you want.
You can pin up to six sites. If you have less than six sites pinned, then Firefox will dynamically fill in empty slots with sites that you visit frequently. If you wish to keep a frequently visited site, you can do this by pinning the site. If you wish to change the URL of a pinned site, you can edit the URL.
Firefox will display a visual indicator on the top right to confirm the site has been pinned.