Make firefox themes great again !!!

[bigbanana80]

Right now, It's impossible to use Firefox themes and the Zen mod does not work well in this regard. This should be a base feature IMO. The gradient color is cool and all, but it does not beat the diverse themes in Firefox stores, so I think one of the below ways is so needed to truly customize themes :

1- add a user-friendly way to add custom images to many parts of zen so we can replicate our fav Firefox themes
2- just add Firefox theme support again.