If you joined on BabelZilla after the upload of the extension (in this case it already contains your localization) before completing/checking your translation the link name is "Unknown translator", therefore you have to register yourself as official translator !
You may do it in two manners:

        1)  Click on List All Extensions  in the WTS menu
        2)  Pick the one you wish, click on its title
        3)  The list of all languages for the extension will appear;
        4)  In this list click on Unknown translator link near the language acronym;
            
        5)  Confirm your request
            
 

       a)   °  Click on List All Estensions  in the WTS menu;
       b)   °  Pick the one you wish, click on its title and the list of all languages for the extension will appear;
       c)   °  In this list select the long name of your language and one page will open
       d)   °  In this page click I'm the translator. Register me for this extension  ;
                
       e)   °  Confirm your request
                  

Note: you have to be logged in order to access to the Web Translation System

For more information, please see the other Questions & Answers