When clicked button "Bookmark Manager" it shows dialog: Illegal URL: chrome://bookmark...

Windows 10 1803, Firefox Developer Edition 62.0b12

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10/10 Edited:
+1 Star for:
Works fine now. The search and positioning function are quite useful, supplemented what Firefox lacked out of box.

P.S. [Performance] For loading a lots of bookmarks, it's slower than the other two extensions: `Brian` and `Humble New Tab Page` - though they're not intended a bookmark manager. There should be room to optimize.

P.S.S. [UI] I think it would be better to have a popup window with dual panel to manage massive bookmarks. Even though there're sidebar view and popover view, they're both too narrow and uncomfortable for managing massive bookmarks.
If you could add a window view it would be nearly perfect, I think then it would be ready to replace the default one manager. :)

-2 Star for:
Please explain what the required permission "Access *://*" used to do, and it has been interpellated by another user months ago too. I compared it to other extensions, the conclusion I could get only shows that a extension manages bookmarks doesn't require this permission.
If it does required for some features, make it optional please. :)
I don't found any explanation anywhere talked about this possible privacy issue. Don't leave user confused alone please. It's the second extension I found that hosted on add0n.com, both terribly careless about users' privacy. Very worrying.