no funciona

it works but sometimes it glitches and erases all the themes i have made, idk if it's just me or if this add-on is doing it

Nothing speacial. I just find good theme for myself and add it "Fankots Theme by Fantron".

The colors are nice to costumize. Unfortunately UNUSABLE because after opening Firefox it takes an additional 2 Minutes loading the theme before you can start doing anything.
How on earth can you design an addon JUST for some colors consuming SO MUCH ressources??? I really have to control my anger here. Unbelievable.

NO ME DEJA USAR LO QUE YO CREO , QUIERO FONDO GRIS !!!!, PORQUE NO HAY UN FONDO GRIS???,,,O ES BLANCO O ES NEGRO UNA PORQUERIA..!!!! ESTOY PODRIDO!!!

Pink and poisonous green as text/background combinationf for e.g. the application menu [I don't remember which was which and I am NOT about to try to reproduce the situation!] for make an eye-hurting, unreadable combination. The tools and options for color choosing were infinitely superior on the much less technologically sophisticated environment of Sun workstations 30+ years ago....

It's a total crapshoot as to whether a theme will change the underlying UI to dark mode or light mode. There is no option to manually choose. It has a mind all its own. I use light mode everywhere but this add-on insists on forcing dark mode on the context menus and settings pages no matter what colors are chosen. But sometimes I get lucky and some random color combination results in light mode how I want it. This complete lack of control is fundamentally bad design.

setting the toolbar color also changes the default background color for web pages; that should be a completely separate option

I installed the extension because I wanted to add color to the top bar. I made some changes and exited the setup to see the results. But I couldn't find a way to get back to the setup. Finally, I uninstalled it and reinstalled it. But the same thing happened; I couldn't get back to the setup page. So I'm going to uninstall it and hope I can find a way to actually use the extension.

Firefox Colors represents the whole sad history of Firefox and Mozilla. Starting with the best of intentions, and then like a machine rolling through mud, accumulating sludge as it progresses till it is unrecognisable and impossible to use. Gets a good cleanup and starts all over again.
I agree with many of the others, who, like me, are frustrated at this stupid implementation. Every change appears to be irreversible. I have lost all my careful colour setups of versions past. Oh well, there are probably some idiots in a room somewhere patting themselves on the back and thinking they did a great job - so this won't change.
It's okay, we are almost at the point in the Firefox cycle where I drop off and walk with relief towards Chrome...

I hate it

doesn't load the page, i opened the extension, went off, played a game for an hour, came back and was confused by a blank tab, only to realize, IT WAS THE EXTENSION PAGE. so...yeah, it doesn't work.

'Export' doesn't work.

A complete waste of time trying to bring back the system theme that Firefox screwed up.
If you want to to something useful allow us to configure the _existing_ theme then not a useless preset

All I wanted to do was change the color of the active tab so I can see it more easily. The second I clicked on that one new color, it changed EVERYTHING, and it looked horrible. I can't remove this add-on fast enough.

hate it have lost hours trying to loose t.

Can't get to page to change anything so at this point, totally useless.