I do miss my colorful tabs, but the newest version does not work for me. It blacks out the theme, task bar and all tabs except the one in use, making it too difficult to navigate. With reluctance, I have decided to disable the extension.

Add on was great, not working with latest version of Firefox. Blacks out theme and menu bar. I had to shut it off.

I gave three stars in recognition of the great history and usefulness of this Great Extension
It is too bad the Dictators at Mozilla forced you to inhibit this extension to support their egocentric view of FireFox.
I have had to disable Colorful Tabs it on all systems as 57+ the colours are too irritating
and the extension does not work on <57 (no colours).
Possibly you should consider other browsers, currently I am testing Opera, which is OK (not great).
The advantage Opera has for me at the moment is support for Web Pages saved in a Single File Format
which the Mozilla Dictators killed.
Also, Make Use Of has identified some new players in the browser world,
hopefully one of them will emerge to fill the void Mozilla has created.
Good Luck (& Skill!) as you move forward,
and remember,
Great Technology Does Not Dictate, It Delivers with Options ~mm

Update 20171120 19:20
I received a message from the developer stating my review was for a previous version (32). I updated to 32.1, but it is not much better. Now it changes all the tabs to white, and still colors the current tab (and menu bar, etc., which is useless). It still does nothing to help identify other tabs. I will gladly change my rating if it starts working as planned.

Original Text
ColorfulTabs always made it easier to identify tabs. Now, not only are the tabs NOT colored, they are blurred so I can't read them or find the one I'm looking for. Only the current tab is colored. It is useless. We don't need to find the current tab. And the icon that brings up a duplicate set (of colored tabs) is a wasted 'click', and is disorienting.

It used to be 5 stars. Now it is zero. Can't find anything useful about it. it's got to go!

I was so happy to see colorful tabs has returned for FF 57. However, it is not working the way it did before. It seems to come with its own theme and everything changes to a black background. I hope this will be resolved, but until it is, I am going to deactivate it.

Yes, Firefox 57 has been in the works with test versions available to all devs for a long long time. That was the period to try out a new version, not now.

Colorful tabs is now twice dead, I'll look in a few months to see if it's been resurrected.

Neither the Quantum or the ESR version are satisfactory. Only the active tab is highlighted with color, other tabs are in background color and hard to see. And I see no configuration controls to manage its appearance. Let's hope a new version that provides better compatibility will be available soon.

Последняя версия - глючное говно. Не видно ни границ вкладок, ни кнопок закрытия ни кнопки добавления. Сношу нахрен.

Was good but now it hurts my eyes. Why do developers believe that they need to follow the bad MSFT W8 color scheme example. This may work on a cell phone but looks awful on a regular screen.. MSFT has made all our buttons flat and unfortunately the trend has been adopted by almost every developer. What looked pleasant in the past now looks as if developed by a colorblind toddler who had too much sugar.
High time developers take a course in aesthetics.

Hello! The app is super! I have been using it for several years.
But after the Firefox Quantum update, ColorFul Tubs looks awful!
Previously, only the headers of the tabs were painted in different colors, now everything is painted. Somehow the browser looks silly, for example, pink.
Is it possible to fix this, so that it was like before?

The new version to Firefox 57 is absolutely disgusting. I had been using CT for ever, but now is it just confusing. Adios baby.

замечательное расширение

Do not blame the author .. blame those that developed Quantum. They favour the need for speed as opposed to HOW the browser is used. I doubt very much that they even looked at how folks used the browser in conjunction with the best add ons. BOOO to Firefox makers which has made the addon virtually impossible to use.

Oh .. with the automatic downloads they kidnapped loads of unsuspecting punters giving them no choice .. but you can revert to an older version of Firefox (ESR) which will have security updates. The more that do it .. the more they will see they need to work on API.

You could also try waterfox which allows the use of Colourful tabs. For a lot of long term users its function over electric speed. Colourful tabs Version 31.2.2 works with waterfox.

les font noir ne permette plus de lire les texte on ne vois plus la croix

I want to remove or disable this feature. The colors in the recent update are TOO STRONG. How can I get rid of it? I tried to disable themes in settings, but Colorful Tabs won't go away!

Voting 4-5 stars for appreciation of previous versions or encouragement for the developer to fix in the future is nonsense. And if these features can no longer be done with the new add-on restrictions and "it is not the fault of the developer" then this add-on should be put out to pasture. Pushing out an unfinished update is irresponsible and annoying. I was sad to have this become a deactivated legacy add-on after v57, but I am so annoyed with the update process and having to uninstall that I bothered to sign up for an account here to write this review. Shame no zero stars possible.

I have always loved Colorful Tabs. But the latest release for Firefox 57 was not tested enough. The tab bar appears mostly as a black blur, and you cannot even get to the "_" or the "X" at the top right of the window for minimizing and closing the browser. I hope there is some way to hear about an updated, functional release of this formerly great Firefox extension, because right now I have had to uninstall it. It just cannot be used in its most recent incarnation.

color tabs sind bei mir schwarz!!!!!!

This was a five star extension prior to FF57, and now it just doesn't work. (1) No colours in inactive tabs (2) Text in inactive tabs unreadable, (3) Cannot drag with titlebar/tabbar.

Edit: I'm not trying to blame anyone, extension authors have done a fantastic job and I have used it for many years. It's just unfortunate that in it current state the extension is unusable. Colouring just the current tab is is nice, kinda less useful but at least it's something that can be used. The other two problems are unfortunately showstoppers.

I downloaded the new version of Colorful Tabs and all my tabs turned transparent. I have net yet been able to return them to their former colorful state.

So to spoil the excellent application it is necessary to try very much. There are no options, the theme of Mozilla is breaking, one vile color is pink-violet! Uninstalling!

I was horrified when I installed the new Firefox and discovered it wouldn't accept my Colorful Tabs!

I am now officially un-horrifiedand using the beautiful, wonderful, amazing, unbeatable Colorful Tabs. Thanks for such a quick resolution of my absolute favorite add-on!

Is this sabotage? Doesn't work for 57 but also stops working on older. Why distribute such a broken update? Has developer's account been hacked?