Bookmark / Un-Bookmark Site - Firefox

"Bookmark a page / Add favorite in Firefox 44.

• Step 1. It's easy - just click the star!
  (image of the star button)

How to Change the Name and Location of a Bookmark:

• Step 1. To edit the details of your bookmark, click the start a second time to open the Edit This Bookmark window. When finished editing, click Done.
  NOTE: To remove the bookmark, click Remove Bookmark button.
  (image of the Edit This Bookmark dialog box)"