LOL This reminds me of the ''Android'' app.. Tinted Status bar, This add-on looks and performs great!

Adds a bit of fun to web-browsing, just as the Vivaldi style coloring does. Executes well, but is sometimes slow to catch the "highlight" color on certain pages.

Great little add-on overall!

Excelente plugin, le brinda a Firefox una de las mejores características de Vivaldi

Great App allows me to see my browser better.

Works perfectly! A great way of adjusting your browser more to the sites you visit.

Very good! One of the features I like Vivaldi, now in Firefox too! Thank you!

Muy buena

BEST Firefox customization extension! Hands down!

Cool

Excelente opção! Recomendo a todos...

Posso indicar uma boa opção também!
http://rodoturcarioca.com.br

Super! Thanks for taking the initiative.

Works as advertised. Simple. Exactly the kind of themeing that should be stock for Firefox.

很漂亮

Really nice

You can create neat looking monochrome themes with it. At that, its perfect.

You have helped me understand how tweaking can be complicated yet rewarding! -thanks! -Stan "TCT"

Great addon!!!
I agree with "Anonymous user e7e7c7" & the Developer: we should be able to choose from where to pick up the color theme.
(e.g.: FavIcon, Page's First Top-left pixel, Page's First Top-Center pixel, etc).

I don´t know if it would work on pictures or on pictures with degrade, however...

Anyway, great job (5 stars for considering the idea mentioned by "Anonymous user e7e7c7" )!!!