Issues

• local LT server stops working with Thunderbird extension whereas still works with curl?

  languagetool-org/languagetool#12211 · Filter by author liar666 opened on Oct 2, 2026

• [EN] Subject-verb agreement not detected for some singular nouns ("question", "issue")

  languagetool-org/languagetool#12201 · Filter by author mkaut opened on Sep 23, 2026

• Space being removed after a correction

  languagetool-org/languagetool#12182 · Filter by author FherStk opened on Sep 14, 2026

• Critical GitHub vulnerabilities still there — 2026-09-08

  bug
  languagetool-org/languagetool#12171 · Filter by author marcoagpinto opened on Sep 8, 2026
  1

• [ru] neutral "гусак" is unknown

  Russian
  languagetool-org/languagetool#12107 · Filter by author donnerpeter opened on Aug 7, 2026

• [ru] rule for -тся/-ться is unclear or not applied correctly

  languagetool-org/languagetool#12096 · Filter by author khlebobul opened on Jul 30, 2026

• The word "secateurs" is missing from all English dictionaries except for US.

  languagetool-org/languagetool#12093 · Filter by author BrotherEstapol opened on Jul 29, 2026

• [en-US] Spell checking in GUI does not find incorrect 'defuelled'

  languagetool-org/languagetool#12091 · Filter by author MikeUnwalla opened on Jul 28, 2026

• [DE] Fehlalarm mit "aufwachsen"

  languagetool-org/languagetool#12088 · Filter by author MasterDallun511 opened on Jul 26, 2026

• Missing information on "Finding errors using n-gram data"

  languagetool-org/languagetool#12079 · Filter by author MikeUnwalla opened on Jul 21, 2026

• LanguageTool does not check text in Betterbird/Thunderbird (works only in new profiles)

  languagetool-org/languagetool#12075 · Filter by author Sanja2012 opened on Jul 17, 2026

• [es] adición de 'apóstrofo'

  languagetool-org/languagetool#12060 · Filter by author pereelmagne opened on Jul 8, 2026
  

• LanguageTool icon doesn't appear in the quick reply field on Thunderbird

  languagetool-org/languagetool#12055 · Filter by author mhalano opened on Jul 2, 2026

• [en] A paragraph containing an URL is considered too difficult

  code/javaEnglish
  languagetool-org/languagetool#12045 · Filter by author donnerpeter opened on Jun 26, 2026

• [en] Don't suggest removing "of" in "all of the X", at least for singular X

  English
  languagetool-org/languagetool#12043 · Filter by author donnerpeter opened on Jun 24, 2026

• GUI: LocalStorage uses java.beans.XMLDecoder (CWE-502) for per-user preferences

  languagetool-org/languagetool#12041 · Filter by author elarasu opened on Jun 24, 2026

• [DE] Fehlalarm Verb/Adjektiv

  languagetool-org/languagetool#12038 · Filter by author MasterDallun511 opened on Jun 21, 2026
  1

• [en] Wrong "allow to" suggestion

  English
  languagetool-org/languagetool#12036 · Filter by author donnerpeter opened on Jun 19, 2026

• [en] "type of a variable" false positive

  English
  languagetool-org/languagetool#12035 · Filter by author donnerpeter opened on Jun 19, 2026

• [en] Allow "multi-dimensional"

  English
  languagetool-org/languagetool#12034 · Filter by author donnerpeter opened on Jun 19, 2026

• [BUG] Firefox Add-on: Words sometimes get merged upon correction in Gmail

  languagetool-org/languagetool#12031 · Filter by author orschiro opened on Jun 18, 2026

• [Bug] 8.11.2-tb.xpi does not accept account credentials.

  languagetool-org/languagetool#12028 · Filter by author beedell-roke opened on Jun 13, 2026

• Vulnerability found on opentelemetry

  languagetool-org/languagetool#12021 · Filter by author AnthonyJacobs opened on Jun 5, 2026
  

• Input is very slow on google slide

  languagetool-org/languagetool#12019 · Filter by author t-nor opened on Jun 3, 2026

• [ja] rule id KONITIHA spelling error marked as grammar error

  languagetool-org/languagetool#12005 · Filter by author AlephFive opened on May 20, 2026