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About this Add-on
An option is provided.
It becomes more convenient when you use "Show Parent Folder" (https://addons.mozilla.org/en-US/firefox/addon/7372 ) And "Sidebar Bookmarks Search Plus" (https://addons.mozilla.org/en-US/firefox/addon/55977 ) together with this.
If you want to ask something about this, please post it to the following forum.