Puntuado con 4 de 5 estrellas

In version 0.3.8 button for open new tabs looks like green cross. In version 0.4.0 - like grey trapeze.
Green cross better

Esta valoración es de una versión anterior del complemento (0.4.0). 

Replacing the new tab button was a mistake, since it has an icon.
I just reverted it back to the regular icon, but tell you what if there's another review complaining about it; I'll try to replace it (properly working this time)

In the meantime add this to UserChrome.css http://kb.mozillazine.org/index.php?title=UserChrome.css

.tabs-newtab-button{-moz-image-region:rect(192px 448px 208px 432px)!important;list-style-image:url("chrome://cutebuttons/content/mosaic.png")!important}
.tabs-newtab-button:hover{-moz-image-region:rect(192px 192px 208px 176px)!important}