Firefox 技術支援討論區

I have the US English language pack and dictionary installed and they are updated. However, when I access some menus or look at some items (e.g. when I go to help and look at 'About Firefox'), they are in the wrong language (in this case, Thai). I have already downloaded the US English version and installed it, but that has not solved the problem. I also tried fiddling around with the locale, but that hasn't seem to have done anything, although I'm not very technical so I might just be fiddling with the wrong things. Could anyone lend a hand? Thank you very much.

Guys after latest update I can't change fully my user interface language. I changed language setting to English everywhere, and part of it is still in Estonian ( I live in Estonia, that's why for some reason mozila gave me headache and changed user interface to estonian).

Check screenshot, English is set as main language and menu is still in estonian. I even reinstalled ENGLISH version of firefox, but it didn't help me, still estonian menus. Spend 2 hours trying to solve this issue. Sry for crying, but so often after updates things like this happen.

Please help me change language to English :)

P.S. I can't delete my profile in firefox, and completelly reinstall it, cos I need my setting.

Thanks in advance and have a nice day!