Finally an extension that can change the color of visited links in Firefox version 138.
However, I can't see the menu that appears in the image, how do I access it?
For now the color of visited links is "red", how could I change it?
Thanks a lot
Update: The author kindly answered my question and explained how to get to the settings (extensions icon>gear icon>add to toolbar). Now I can say that this extension is rally awesome. Thanks really a lot, I'm sorry I can't add more stars.

Works great! Nice to have opt in functionality now :)

Saw your post on reddit. Nice work, I'd give 5-stars for as long as it works fine on my Firefox browser :)

Magnifica extension, excelente funcionamiento. Perfecta es lo que se busca cuando se instala. Enhorabuena y muchas gracias por un buen trabajo que facilita enormenente el mio