For each locale supported in your extension, follow the instructions toUse Firefox in another language to switch the Firefox UI language. (If you know your way aroundSettings, underLanguage, useSet Alternatives.)
When Firefox is running in your test language, fromabout:debugging,install the extension temporarily or reload it if it's installed. After installing or reloading your extension, if you've set up your extension correctly, you see it listed with its icon, name, and description in the chosen language. You can also see the localized extension details inabout:addons. Now, exercise the extension's features to ensure the translations are in place.
To try this process out, use thenotify-link-clicks-i18n extension. Set up Firefox to display one of the languages supported in the example (German, Dutch, or Japanese). Load the extension and go to a website. Click a link to see the translated version of the notification reporting the link's URL.
Tags: add-ons extensions guide permissions testing webextensions localization
Contributors: rebloor
Last update: rebloor
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