I wanted to use it but it doesn't apply dark themes on homepage so I'm not using it. Hopefully you will add the feature to apply themes on homepage as well.

Hello developers. That add-on is cool and interesting but... I'm begging you! Add ability to change color or image of a new tab (tab when you are clicking + (open new tab)) in this add-on. It will really helpful because now when I use black theme with some customization I see white color on a new tab.

Tem 1 problema esse app ele é só compatível com computador da linux ou mac corrija este erro quero ter de usar ele mas não dá

Very nice! Tnx, Mozilla! :))

Very much dislike that we are forced to use this. I prefer to personalize my own experience, and don't have time to create my own browser 'look'. SO many wonderful Theme artists have made beautiful themes, and Color is just poor. Why retire Personas Plus when it was so easy to use? Color is the default and I haven't found an easy way around it. Very disappointed.

запускается только в первый раз, при следующем запуске просто белая страница, приходится удалять и ставить заново, пожалуйста исправьте

I love it ♥

Worked really well for a long time, but now the tab bar will only be white, and it really ruins the entire dark theme I have going on...

Been using this since its debut in the old Test Pilot program; really enjoy the customization. I don't need fancy buttons, etc., of the old full themes, just the option to pick some colors.

This is awesome !!! Thanks !

So this is the replacement of Personas Plus. Well it's not as good, that the least to say.
- On its customiser page, Personas Plus had a very convenient colour picker. Firefox Color hasn't. One star disappears.
- While the interface is efficient and easy to use, I could only use it once. Indeed, from the time I saved the theme, I couldn't go back to the interface, neither with the add-on button nor the URL. I only get a flash of that quote page and that's it. One other star disappears.
- If theme is changed via add-ons menu, where by the way saved theme from F Color isn't even listed, you can reload this saved theme by clicking the add-on button, only if all F Color tabs are closed. One other star disappears.

Maybe the problem comes from my OS which is Linux Mint 19.1 Cinnamon 64-bit.

Personas Plus has less fancy options than its successor but at least still works to apply a custom theme. I stick to it for the moment.