firefox-addon-sdk localization of add-on options - firefox

Question

In firefox Add-On builder there is a possibility to drop add-on preferences into the properties window in an "Extra package.json Properties" field.
The preferences for localization look like this:
{ "preferences": [
{
"type": "string",
"name": "myStringPref",
"value": "this is the default string value",
"title": "My String Pref"
}
....
]}
}
Question: How can i localize the labels of the addon-options?

Answer 1

Here is essential of manual localization.
create locale files in json format
create locale listing file in json format
download addon package(xpi file) from Add-on Builder
rename file extension .xpi to .zip
expand zip file
create locale folder in the root of addon
copy locale files into locale folder
copy locale listing file into root folder
zip all files and folders on root folder.
rename file extension .zip to .xpi
file tree:
my-addon
| locales.json
|
+---data
+---lib
+---locale
en-US.json
fr-FR.json
ja-JP.json
samples:
locales.json
{"locales":[
"en-US",
"fr-FR",
"ja-JP"
]}
en-US.json
{
"test": "test en-US",
"test2": "test2 en-US"
}
fr-FR.json
{
"test": "test fr-FR",
"test2": "test2 fr-FR"
}
ja-JP.json
{
"test": "test ja-JP",
"test2": "test2 ja-JP"
}

Answer 2

You can localize the labels of the addon preferences by add some json files into addon package file(xpi) manually.
I wrote "How To" document in Japanese, just yesterday.
You can get it through Google Translate.
I beleive that this document will help you.
http://translate.google.co.jp/translate?sl=ja&tl=en&js=n&prev=_t&hl=ja&ie=UTF-8&u=http%3A%2F%2Fbacky0175.at.webry.info%2F201310%2Farticle_4.html&act=url
Note:
Google Translate makes some weird translation. :-(
Sorry for inconvenient.
backy0175

Answer 3

No it's not possible to do this at the moment.