Rated 4 out of 5 stars

but german button labels are muuuuuuuuch too long! it could be tied around the browser at least three times ^^

e.g.
english: "Detach Tab"
german: "Tab in neues Fenster verschieben"

Button bar with text is nearly impossible with those labels.
I changed it to "Duplizieren", "Exportieren" and "Extrahieren". That is sufficient for me.