I agree with Monke, and happy to hear the option is "on the roadmap." Just tonight, I know that I have made a bookmark previously, but do not see the folder or tab. I'm not as techie as most of the smart people who make recommendations, but I also wonder if duplicate bookmarks just overlay or the system just ignores them when I create another tab for the page I am using.
My strongly suggested improvement to Firefox is the ability to search Firefox bookmarks - particularly IOS Firefox as this is my preferred platform. Its driving me crazy not being able to easily do this 🙂
I was hoping this post would get the attention of the Firefox development team. I would be grateful for some feedback as to approx when it might be available in Firefox