The chrome extension +You Gbar is becoming famous quickly, and in one week more than 5k people have downloaded it. In case you don't know about it, the extension lets you personalize the order of the Google Black Bar which you can find in every google service page, sorting its elements by dragging and dropping.
The firefox version is already finished, but the mozilla extension directory has stricter conditions to let the plugins be published than chrome's one. We must be patient...