Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Browser locale refuses to switch back to en-US

  • 2 respostas
  • 1 has this problem
  • 2 views
  • Last reply by cor-el

I was testing out my extension Context Search X in Deutsch, and when I changed general.useragent.locale back to en-US, all the extensions still have their ui in Deutsch. I have restarted Firefox many times already.

I was testing out my extension Context Search X in Deutsch, and when I changed general.useragent.locale back to en-US, all the extensions still have their ui in Deutsch. I have restarted Firefox many times already.

All Replies (2)

Maybe the browser caches the locale folder although I think it shouldn't. How do I make it refresh all the folders affected by the locale switching?

Try to delete the file compatibility.ini in the Firefox Profile Folder