web app – Firefox bookmark toolbar custom folder icons?

is there an extension for current version of Firefox that enables you to change the icons of the folders in the bookmark toolbar? So far I’ve not found any, so I’m stuck with Waterfox Classic since it can still support the add-on Bookmark favicon changer 2.29 by Sonthakit Leelahanon.

Screenshot of my bookmark toolbar attached

Thanks for your input

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