If you have seen carefully you can see a star in the address bar to add the current page to the bookmark..

METHOD1:

If you need to rename it then right click on the book mark (If you have a bookmark tab ) then select edit from options there you can rename the bookmark..!!

METHOD2:

Press "ctrl+shift+O" To open bookmark manager there you see all your bookmarks and you can find several oprions for every bookmark when you right click on the bookmark you need to rename..!!

Thats it..!! have a nice day!!

-Tracy Gipson

See also:

• https://support.mozilla.org/kb/how-do-i-use-bookmarks

You can also modify the name via the right-click context menu in the Properties of that bookmark.

Thanks guys. I actually found it 2 minutes after I asked. Ctrl+D