Hi, I'm glad to hear you to say that. I love Firefox for Android and use it everyday, and rely on addon heavily. So I always ensure all of my addon are Android-compatible if possible. Besides, DeepL is created by lots of professional linguists with lots of super computers, which is not an ordinary developer can do... And this addon is merely using a package "igo.js" (https://github.com/shogo82148/igo-javascript) created by a Japanese "shogo82148" to analyze sentences & get the pronunciations of vocabularies.