If you an extension "Manager", it should be able to do many things. THIS extension has pretty limited functionality. Without such basic functionality as import/export of bookmarks it is NOT a manager.
Name your extension properly. Then nobody will expect much from it and you may get more stars.

A workaround to Firefox bug "Add "Open Enclosing Folder" context menu to search results of bookmarks in the Library window (link to view/open containing folder, parent folder button) " - https://bugzilla.mozilla.org/show_bug.cgi?id=469441

Didn't work for me on Firefox 55.0.3 (32-bit) and I can't see how it does. One star is actually no star.

Not working on Android, waste of time

Easy to use and I really needed this to organize my searches and favorites

This addon doesn't work in Firefox 54.0.
It installs, and is visible in addons, but there's nothing to give the option to use it. No toolbars, or buttons, or even options.
When selecting bookmarks on the menu, the basic Firefox bookmarks page is shown. Still no option to use the bookmarks addon.
I've given it one star, but will update to five stars if it's fixed.

Not working on android

Not even a sort option.
Install it if you want but you're getting less than you already have.

so easy

Good addon. And in future updates will appear in the search folders?

I found it best in my experience of other browser,s extensions.
Ok.

todo bueno FF es mi favorito

It just freezes firefox android.Had to uninstall it to make firefox work again.

No compatible with Android version