Firefox Community Forum

Hello,

After Firefox automatically updated to version 156.0 (64-bit) on Windows 11, I can no longer change the browser interface language.

The browser UI is currently displayed in English. In Settings > Languages, I can select Chinese as the Browser Language, but the change is never applied.

What happens: - I select Chinese as the Browser Language. - Firefox asks to restart (or saves the setting). - After restarting Firefox, the entire interface is still in English. - Rebooting Windows does not help. - The setting appears to be ignored.

Before updating to Firefox 156, the browser language worked correctly.

Additional information: - Firefox version: 156.0 (64-bit) - Operating system: Windows 11 - The issue started immediately after the automatic update. - Website language settings work normally. - Only the browser UI language cannot be changed.

Has anyone else experienced this issue after updating to Firefox 156?

Thank you.

Warum in Englisch??? Ich lebe in Deutschland, habe mich in Deutschland in "Deutscher Sprache" angemeldet und erwarte dass Firefox dass nicht nur zur Kenntnis nimmt, sondern auch anwendet! Ich will nicht bei jedem Umblättern oder anklicken von Links jedes Mal wieder versuchen eine Deutsche Seite zu erlangen - das ist ätzend und leider auch technisch nicht sehr überzeugend! Auch auf dieser Seite sind die meißten Texte in Englisch -das ist einfach schlecht - wenn ich dem System als Sprache Deutsch angebe, erwarte ich von einem System im 21. Jahrhundert, dass er das nicht nur versteht sondern auch beibehält und auch bei der nächsten Anmeldung in dem Account noch weiß und nicht wieder erneut mit dem "Engisch-Zirkus" beginnt. Leider ist diese Programm gefühlt davon weiter entfernt als Berlin von NewYork! Rainer Wojtenek, 17.9.2026 15:44 PS Leider weiß ich auch nicht, warum ich so viele Accounts habe - z.B. wüsste ich nicht, wieso ich Info1953 eingerichtet haben sollte - das ist "Deutsch audgedrückt" leider alles Mist! Dass ich inzwischen 79 Jahre alt bin ist einerseits schön, andererseits leider sehr anstrengend, da die Anforderungen an einen Account ganz offensichtlich im 21. Jahrhunfert nicht einfacher geworden sind, sondern gefühlt ein Rückschritt in die Steinzeit. Ihnen noch einen schönen Tag...

System: Linux Mint 22.3 Xfce Firefox web-browser: mint-001 - 1.0 _ 155.0.1 (64-bit) Hardware: Both on my Desktop and Laptop computers.

Since the recent updates, 1-2 weeks, every time I try to enter a character via Unicode insertion, CTRL+ALT+U, the character does not insert but a row break. I made a video about it: https://youtu.be/OP9UCGpZdEc

This happens in every website I use; mostly likely on every website.

Is there anything I can do now?

Thank you for your time reading this. 🙇

Hi,

I'm using Firefox 155.0.1 64bits, in Linux Mint Debian Edition 7, x11, XFCE4. I have a Belgian keyboard. I have noticed that the dead keys aren't working any more when typing text / messages from within Firefox. I don't have this problem in other browsers or applications.

I used xev (x11 utility) to check if the dead keys were working and tested a different keyboard, all work. I tried to start Firefox in safe mode or by starting Firefox from a terminal with the following commands: - env GTK_IM_MODULE=xim firefox - env GTK_IM_MODULE=ibus firefox

But nothing worked. The dead keys aren't working. The issue must come from Firefox for it is not an hardware issue (tried different keyboards) nor software (dead keys work in other applications).

Any idea to fix this ?

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I'm using Mozilla's Firefox Debian package, Firefox 155.0.1 (64-bit), on a desktop. Until this version, my compose key worked with no problem, in Firefox and all other applications. Now it works with all other applications, but not Firefox.

My .bashrc includes this line: export GTK_IM_MODULE=xim

I checked about:config, and focusmanager.testmode is set to false.

Any ideas? I can't type my name without the compose key...

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My Firefox is in English, but the new update page is never displayed in English,

https://www.firefox.com/pt-PT/whatsnew/general/?from_main_nav=true&version=155

Problem number 1: It should be based on the installed language.

Problem number 2: It says PT-PT but it's 100% PT-BR, What is "celular" and "privativo"?, sintax does not conform to european portuguese either.

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Your 'translate page' is NOT working efficiently anymore on my desktop and it is impossible to get work done now I go to my phone, and you've rearranged everything and I can't find it there Firefox is becoming a burden. I left a google review and it tells me to come here... 3 days and 6 pages later I found where I can ask for help and not get an 'article' from 2023 Ridiculous