Custom Firefox icon doesn't change icon everywhere

[Tosterdr0p]

I really like the idea of being able to natively customize the browser icon in Windows, but I have a bit of a nitpick in that the custom icon doesn't apply to other places within Firefox where you would see the logo. For example, if I set the icon to 2004, I would love to be able to see that reflected on the icon for New Tab or the Settings page. I don't know how hard this might be to implement, but if there's a way that it can be done, I would very much appreciate it. 🙂