https://addons.opera.com/da/extensions/license/duo-strength/?
Udvidelsen Duo Strength - Opera add-ons
duo strengthoperaaddons
https://addons.opera.com/pl/extensions/license/duo-strength/?
Rozszerzenie Duo Strength - Dodatki Opery
duo strengthrozszerzeniedodatkiopery
https://addons.opera.com/it/extensions/details/duo-strength/
Estensione Duo Strength - Componenti aggiuntivi di Opera
Adds individual skill strengths back into the duolingo webpage, similar to data on duome.eu
duo strengthcomponenti aggiuntiviestensionediopera
https://addons.opera.com/ms/extensions/details/duo-strength/
Duo Strength sambungan - Tambahan Opera
Adds individual skill strengths back into the duolingo webpage, similar to data on duome.eu
duo strengthsambungantambahanopera