I can use the feature to sort my regular bookmarks, but not the bookmarks in my folders.
Use bookmark folders to organize your bookmarks
inform us back if your problem is not solved
Sort your bookmarks to quickly find the ones you want
Please check this
I ended up just sorting them manually. For some odd reason I can only use "Sort By Name" on bookmarks that aren't in a folder. Thanks anyway for the replies.
firefox 19.0.2 Portable
I can sort folders but not sub-folders. the command is there but does nothing.
This page gives instructions on how to do this procedure: