It's a really great add-on.
Are you having trouble loading your theme collection?
The Firefox Color page should be reduced to about 80%.
Then you can load the saved themes.

I love making themes for myself and friends.

With the new Firefox 89 I need this addon, because the tab bar in this version no longer adopts the colors from Windows.

The addon works very well, except for one thing: Depending on which color I set under "Background Tab Text Color", I have either a light or a dark context menu (right mouse button menu). Example: with FFFFFF (hex) I have a dark context menu, with FF0000 (hex) I have a light context menu.

It would be great if I can configure the context menu separately or the setting "Background Tab Text Color" should have no effect on the context menu.

I like it but it never saves me theme to default I have to keep manually setting the custom stuff that I made, it always goes back after I shut off my PC though absolutely frustrating! I cant even get it to work this time, I have a saved theme I want to use, I click it and nothing happens, no options to set it as default doesnt even do anything when I click it i end Up still using the boring default shit

When I open Firefox Color,I can't open my saved themes because a 3 line thing is covering it up. Just want to pick one of my themes