German Dictionary (de-DE), classical and reformed

German Dictionary according to the classical or reformed spelling standards for spell-checking in Firefox and Thunderbird ++ Deutsches Wörterbuch nach den bewährten oder reformierten Regeln für die Rechtschreibprüfung in Firefox und Thunderbird

The "German Dictionary (de-DE), classical and reformed" is an open-source Firefox and Thunderbird add-on designed for spell-checking in German according to both classical (pre-reform) and reformed spelling standards. It supports cross-platform use and is based on LibreOffice extensions, ensuring the dictionary contents are original and comprehensive. The add-on is compatible with the latest versions of Firefox and Thunderbird, making it reliable for users who require spell-checking based on either traditional or modern German orthography.

Licensed under the GNU GPLv3, the add-on embraces open-source principles while providing users with the option to donate to support its ongoing development. Detailed changelog and updates are available to keep users informed. Ideal for German language learners, writers, and professionals who need accurate spell-checking tailored to their preferred orthographic standard.

User reviews


Dieses Add-on ist wirklich wertlos. Selbst der sächliche Artikel wird unterstrichen. Einfachste Wörter, wie z. B. "Fehlermeldung", "war", "seit", "möchte", "Wörterbuch", ... werden unterstrichen. Da hat man mehr Arbeit, das eigene Wörterbuch zu pflegen, als es einem nützt, indem falsch geschriebene Wörter angezeigt werden. Früher (ca. 2017) hatte die Rechtschreibkontrolle wesentlich mehr Wörter. Warum die Liste so sinnlos zusammengestrichen wurde erschließt sich mir leider nicht. So wie es jetzt ist, sollte es nicht mehr als Wörterbuch zur Rechtschreibprüfung angepriesen werden.
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Extension safety

Risk impact

German Dictionary (de-DE), classical and reformed does not require any sensitive permissions.

Risk impact analysis details
  • Low This permission has no access or impact on the user's system or data, thus carrying no risk.
Risk likelihood

German Dictionary (de-DE), classical and reformed is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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