Works out of the box. Easy to configure and no needs to restart Firefox or re-open tabs. From wish list only one thing would be nice to have if technically possible: keep color or even use different one if tab is not active.

Thank you!

Very simple and easy to use! I multi-task a lot which means I have a lot of tabs open at once - having the active tab be coloured makes it so easy to not get lost in what I'm doing. Before downloading it I'd accidentally close my active tab a lot, so this is a god-send.

A small suggestion would be to have the option to change colours based on hex code instead of RGB/HSL, or to have an eyedrop tool to pick a colour from the screen - I like the colours of my tabs to match the logos of the sites they're from, and an addition like that would do wonders. I think, if possible, having the option to pick the colour of the text in a tab would be a great addition too.

One small thing that's more in the way of a correction/fix is that switching from a coloured tab to an uncoloured tab makes the uncoloured tab's colour flash for a moment. EDIT: another thing, sometimes uncoloured tabs spontaneously take on the colour of the previously selected tab and remain that way until you switch to a different tab

Keep it up, I love it!