There no longer seems to be an option to re-name bookmarks under Organise- just new, copy, paste and delete.
There is a long winded way of doing it, but I'm asking in case I'm missing something.
I have Windows 8.1
I dont have a Library option, and the right click menus definitely don't include re-name or properties so we must have differnt versions.
By following your link I can see that by selecting the bookmark the website opens then I can use the yellow star to edit.
Alternatively I can follow the Show All Bookmarks tree and edit in the Name box at the bottom of the window.
I was just hoping that it was as easy as the earlier version of Firefox on my old (now defunct) PC, and also the latest IE. With both of these there was/ is a tab for Bookmarks/ Favorites on the top toolbar then a simple right click opens an edit menu which includes Re-name.
Anyway there are 2 ways of re-naming so I have marked the thread as solved. Thanks again