On this add-on's page (and possibly all others that display the "Help" section), the sentence "Unterstützung für diese Erweiterung gibt der Entwickler unter ..." is marked up with a lang attribute that specifies "en-US" in its value. The rest of the page is fine. This lang attribute causes screen readers that support language switching to read this German sentence in English, making it incomprehensible.
Thank you for pointing this out. I will submit a patch shortly.
Created attachment 326323 [details] [diff] [review] Remove lang attribute from support email paragraph I removed the "lang" attribute from the paragraph, as the text is localized to the current page language and not dynamically localized by the developer.
Fixed in trunk, r16206. Thanks!
Production: <h4 id="support">Hilfe</h4> <p lang="en-US" dir="ltr" > Preview (staging): <h4 id="support">Hilfe</h4> Verified FIXED using https://preview.addons.mozilla.org/de/firefox/addon/5081
3.4.5 was pushed on Friday.