Your System Details does not show such an add-on. Go to the [https://addons.mozilla.org/en-US/firefox/ Mozilla Add-ons Web Page] {web Link} (There’s a lot of good stuff here) and search for what you want. -------------------- Most such add-ons work by the user marking the text you want to translate and pressing the add-on's icon. If you want to translate the whole page, press the add-on's icon to display its menu.

See e.g.: *Translate This!: https://addons.mozilla.org/firefox/addon/translate-this/ *ImTranslator: https://addons.mozilla.org/firefox/addon/imtranslator/