Favorites is in IE, Firefox and most other browsers called them bookmarks.
http://support.mozilla.com/en-US/kb/Bookmarks

Sections of this site appeared to be non operative for several hours - I was unable to access my question or to sign in.

At least IE had the grace to give a mildly informative error message suggesting the site was undergoing maintenance.

Now seems to be back to normal (if not very helpful) operation.

I really am coming to hate Firefox. It is far less user friendly than IE. I still am unable to figure out to open replies to a question I asked a couple of days ago, although I'm told that there was at least one reply. It seems that one cannot add to favorites. I moved all my favorites from IE. but several did not make the move, and I want to add them to FF's favorites. No way (???) I have no idea what bookmarks are supposed to be. When I click on that button I wind up on Yahoo. Don't understand nuthin'

See https://support.mozilla.com/en-US/search?q=&asked_by=wwdslovene&answered_by=&sortby=1&w=2&a=1

• Export the favorites in IE to an HTML file (bookmarks.html): File > Import and Export
• Import the HTML file in Firefox: Bookmarks > Organize Bookmarks > Import & Backup > Import HTML: From File

See also:

• http://kb.mozillazine.org/Import_bookmarks ("Import from another browser" and "Import from file")

https://support.mozilla.com/en-US/questions?filter=my-contributions