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Customize tab colors

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Just updated Firefox and classic theme restorer no longer works. Any other add on I can use to customize the colors of the tabs? To be specific, something to make unloaded tabs a different color than loaded tabs and currently selected tab. Something to make them less square and annoying looking would be a bonus.

Just updated Firefox and classic theme restorer no longer works. Any other add on I can use to customize the colors of the tabs? To be specific, something to make unloaded tabs a different color than loaded tabs and currently selected tab. Something to make them less square and annoying looking would be a bonus.

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The author of Classic Theme Restorer posted a huge trove of custom style rules to replace many of the features that CTR users are missing: https://github.com/Aris-t2/CustomCSSforFx

In order to pick and choose different features you have to read through a detailed stylesheet file. If that's Greek to you, you could ask for assistance here: https://www.reddit.com/r/FirefoxCSS/