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.

This is a great extension to make your own theme. I would give it five stars if it had some more customizing features like making the menu/toolbar transparent for custom images. I would also give it 5 stars if this very annoying issue didn't occur where a tiny bit of line from the custom image shows up under the toolbar. https://i.imgur.com/1XdWroq.png

I hoped that this would enable me to fix an issue running in Ubuntu whereby the window maximise/minimise buttons are rendered in white lines which means you can't use a light background for the background colour (as then you can't see the buttons). But it does not seem to offer that.

It's great!

'Export' doesn't work.

A decent start, but ease of use and documentation lacking.

V.92 was recently foisted on us. I had Firefox set to pick up my system colors for the toolbar area. V.92 turned it to default light gray and I cannot find the setting to get the system colors back.

Firefox Color is a reasonable workaround. But I prefer the simplicity of the former "pick up system color" setting (wherever it was).

Also, why are the settings for Firefox Color on the web rather than in the program itself (saved somewhere in a .json or similar file)? When the next update is forced down our throats, will we have to reset everything in Firefox color manually?

Well done. Helps for better contrast (different eyes perceive differently). Usable for change of pace as well as accessibility. Next update might consider bolder fonts. Thanks, solved my issue.