If you create a new folder to the Bookmarks Bar it will sync automatically and add it.
If you remove that folder from the bookmarks bar it will remove it as well.
It mirrors the bookmarks bar.
You can add a .GIF as a background.
I will try to add the function for a video.
In the new version I also added a search bar for searching bookmarks.
Thank you for giving your honest opinion.

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The reason I created this specific extension is that I am the type of user who relies heavily on the bookmarks bar for most of my browsing.

Additionally, preventing users from creating custom folders to store URLs within the extension is a deliberate security measure. This ensures that users will not lose their saved URLs in the event that I stop maintaining the extension, or if they accidentally fail to back up their extension data.