Howto :  localize the initial description  for Moz family extensions  

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This short tutorial is dedicated to those who already know basics about editing and localizing an extension for Gecko-engined apps : Firefox, Thunderbird, Mozilla. It entirely comes from an article of mozillaZine Knowledge Base.

Here are the steps to localize the description of an extension that we shall call tournicoti

1Check that the extension has this tree structure , else create what is missing:

                   |---intall.rdf
                   |
tournicoti.xpi=====|---install.js 
                   |
                   |---defaults------preferences-----prefs.js
                   |                   
                   |---chrome.manifest                    
                   |                                      |--content
                   |---chrome----------tournicoti.jar=====|                                                      
                                                          |---skin                                                          |---locale----|
                                                          |                                
                                                          |---locale--|
                                                                      |
                                                                  tournicoti
                                                                      |
                                                                  ---------------.....
                                                                  |     |     |
                                                                 en-US  (other locales...)
                                                                  |
                                                             --------------
                                                             |      |     |
                                                   contents.rdf     |     tournicoti.dtd
                                                                    |
                                                             tournicoti.properties

= = = = = unzip
folder to create
file to create


2Write this line in prefs.js file:

pref("extensions.{616f2aa8-9674-4009-90de-94ce4ea9d29a}.description", "chrome://tournicoti/locale/tournicoti.properties");


...where the red string is the extension ID number you can copy/paste from the install.rdf


3Write this line in tournicoti.properties file:

extensions.{616f2aa8-9674-4009-90de-94ce4ea9d29a}.description = An extension that makes you dizzy.

Now you have just to re-zip correctly the whole stuff and...
That's all  !
goofy