I had all the good will of the world to love this addon, BUT... it doesn't even get 2 km away from the genius of the original ColorfulTabs.

Most irritating problem is that every tab changes also the main theme of the browser to the tab's color, making difficult to read out menus etc, and undoing theme selection.

Sorry, but, so far, it SUCKS.

Lixo, lixo, lixo.
Desde o FF 57 o addon que era o melhor existente para colorir as tabs deixou de funcionar.
Fez uma versão beta mas é um lixo, apenas pinta a current tab com uma cor aleatória sujando todo o resto da base.

Horrível, horrível, horrível.

Uma pena.

This just ads a random color to only the current open tab, and no other tab. The Color reverts to default when switching between tabs. This is a useless addon, as this does not help to differentiate the tabs that are opened. This is not the FabTabs replacement that i seek.

Just not working like the older version that I liked so well; now only colors the active tab; quite useless as such.

Sadly not compatible with Tree Style Tabs. Seems like it's not working as well as it used to with normal tabs either. Probably not fully compatible with Quantum yet.

Unfortunately it does not work with the latest version of firefox Quantum. Please can you update the plugin.

Unfortunately it doesn't work with FireFox 57.0.4. I've been waiting and hoping for an update because I loved it, but I guess they can't fix the problem. Too bad, it was a great extension when it was working.

I miss Tab Mix Plus, which let me color tabs the way I want, and designate a color to tabs I've viewed, tabs I haven't viewed, the tab I'm viewing, etc.

Only colors the one tab you're on. (FF57). Un-installed. Hope they get it working the way it was supposed to. I would love to try it again. PS. if you do- please email us. Thanks

Exactly what the previous reviews have said about this add-on with FF57 ("Quantum"), especially jazzybob:

ColorfulTabs does not work the same way as it did in the earlier versions of Firefox. In version 57 it highlights the tab your on with one color wile the rest of the tabs stay white.In addition the Bookmarks Toolbar and Addons Toolbars change the same color as the the highlighted tab. It's not pretty.

The one thing I loved about the old ColorfulTabs is the I could color code similar site tabs with the same color. Color coding allowed me to find tabs easily, as I can have 30 - 40 tabs open. Thank goodness for Firefox 57.

I'm very disappointed in this version of Colorful tabs and hope that they go back to the old way it worked. I'm uninstalling this version.

---> I won't use this extension any longer until it is fixed to the way it was before / how it is supposed to work!

ColorfulTabs does not work the same way as it did in the earlier versions of Firefox. In version 57 it highlights the tab your on with one color wile the rest of the tabs stay white.In addition the Bookmarks Toolbar and Addons Toolbars change the same color as the the highlighted tab. It's not pretty.

The one thing I loved about the old ColorfulTabs is the I could color code similar site tabs with the same color. Color coding allowed me to find tabs easily, as I can have 30 - 40 tabs open. Thank goodness for Firefox 57.

I'm very disappointed in this version of Colorful tabs and hope that they go back to the old way it worked. I'm uninstalling this version.

I want colored tabs, NOT my entire bookmarks toolbar colored!

Horrible.Probably as it won't work with Quantum

I love colorful tabs. The only reason I am giving a one star is because every time I add it, (using Firefox Quantum) I lose any theme I have with Persona Plus. Could you please tell how to fix this?

Why stop it from working with <57? If you can't make it work with 57+ at least keep it unchanged.

It's disabled and will not work in Firefox 56.0.2.
I don't like 57.0.1 other than the speed and wasn't that taken with Colorful Tabs new design.
Suggestion: Fix your Add-on to work on 56.0.2 and listen to your donors and subscribers they will be beneficial.

Is finish. Very problem. Remove.

Patience for how long? It has been over a month since release and more than a year since web extensions were announced and documented. Citing some obscure bug as the reason to justify 4-5 star votes against the shambolic way this has been "updated" and "is being worked on" (supposedly) is beyond convenient.

This is now a 1 star add-on, because that is the lowest rating possible. Forget the past, that doesn't matter now. Install it today and you can get weird colors like your graphics driver has messed up. If you really want to encourage or support the developer, then donate, do not rig the rating.

So far, in Firefox 57, for me it's not worth using. If it ever has similar functionality to it's previous-to-firefox-57 state I'll probably start using it again.

I always used this add-on and wished it looked like the screen shot. I don't like the color bar all the way across the screen I preferred just the tab the new approach is too distracting. I had customized colors for my commonly used sites but it doesn't appear that the new version allows this. Random colors are not helpful. Also when only the selected tab is colorized and have to read the tabs rather than just selecting a color. Hopefully it will improve but for now bye, bye

Just terrible

Non funziona. Non e un problema FF57. Altri addon funzionano. Basta! Finito.

There should be a special zero star for this one.

I have it disabled because Firefox Themes stops working when Colorful Tabs is turned on. I check periodically. Today 12/20/2017 it is still happening. Using Firefox 57 and 58 beta (on two PC's).