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Korean IME composition breaks in web page text fields

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When typing Korean using a hardware keyboard (Bluetooth) and Gboard in text fields on web pages in Firefox for Android, IME composition behaves incorrectly.

Korean characters sometimes lose their composition state, individual jamo (consonants and vowels) become separated, characters are inserted at incorrect cursor positions, or newly typed characters overwrite existing text.

Here is an example: Firefox 모방ㅣㄹ로 남ㅏㄴ으ㅣ 길을 갓ㅔ요 Firefox 모방ㅣㄹ은 상ㅛㅇ자엑ㅔ 맞춰서 여ㄹ려 있는 모든 탭과 과거 거ㅁㅇ색ㅓ, 즐겿ㅏㅈ는 상ㅣ트를 그 어느 때보다 수ㅣㅂ게 볼 수 있스ㅂ닏ㅏ.

The problem appears to be specific to Firefox's handling of web page input fields. Korean input via Gboard works normally in other Android applications and Firefox's address bar, which means this is clearly a Firefox issue, not a problem with the Bluetooth keyboard, Gboard, or any other hardware/software. Thank you.

Environment informations 159.0.1 (Build #2016193999), 7b34a03a910d0385299f4a9f27aa585a786862d8 GV: 159.0.1-20261102144711 AS: 159.0.2 OS: Android 16

When typing Korean using a hardware keyboard (Bluetooth) and Gboard in text fields on web pages in Firefox for Android, IME composition behaves incorrectly. Korean characters sometimes lose their composition state, individual jamo (consonants and vowels) become separated, characters are inserted at incorrect cursor positions, or newly typed characters overwrite existing text. Here is an example: '''Firefox 모방ㅣㄹ로 남ㅏㄴ으ㅣ 길을 갓ㅔ요 Firefox 모방ㅣㄹ은 상ㅛㅇ자엑ㅔ 맞춰서 여ㄹ려 있는 모든 탭과 과거 거ㅁㅇ색ㅓ, 즐겿ㅏㅈ는 상ㅣ트를 그 어느 때보다 수ㅣㅂ게 볼 수 있스ㅂ닏ㅏ.''' The problem appears to be specific to Firefox's handling of web page input fields. Korean input via Gboard works normally in other Android applications and Firefox's address bar, which means this is clearly a Firefox issue, not a problem with the Bluetooth keyboard, Gboard, or any other hardware/software. Thank you. Environment informations 159.0.1 (Build #2016193999), 7b34a03a910d0385299f4a9f27aa585a786862d8 GV: 159.0.1-20261102144711 AS: 159.0.2 OS: Android 16

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選ばれた解決策

Right, Firefox doesn't like GBoard. Can you test it with Samsung keyboard or Microsoft Swift? Thank you.

TyDraniu said

Right, Firefox doesn't like GBoard. Can you test it with Samsung keyboard or Microsoft Swift? Thank you.

My device (Lenovo) unfortunately doesn't support Samsung keyboard, but Microsoft Swift does solve this problem -- except that Microsoft Swift itself is kind of garbage. (There's no option to hide the suggestion bar, my gosh.) Thank you anyway! <3

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