Rated 4 out of 5 stars

Great!!!! the good add-on of java script at firefox.
but do we have a option to choose the langauge of ths add-on, if yes that will be better!!!

This review is for a previous version of the add-on (1.6.3). 

The language of the add-ons always matches Firefox language - assuming that this translation is available for the add-on.