This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

How can I set a permanent default language for Firefox's spellcheck feature, so that I don't have to keep manually selecting the spellcheck language I want?

  • 2 svar
  • 6 har dette problemet
  • 6 views
  • Siste svar av cor-el

more options

I have a few languages installed, and Firefox's spellcheck seems to decide which language to use at random. So I have to keep manually selecting the language I want. 99% of the time I want English. So how can I set English as a permanent default language, and leave the manual selection for those infrequent occasions when I want another language spellchecked?

I have a few languages installed, and Firefox's spellcheck seems to decide which language to use ''at random''. So I have to keep manually selecting the language I want. 99% of the time I want English. So how can I set English as a permanent default language, and leave the manual selection for those infrequent occasions when I want another language spellchecked?

Endret av ColeMitchell

All Replies (2)

more options

I'm bumping this.

more options

Firefox should store the last used dictionary in the spellchecker.dictionary pref that you can check on the about:config page.

If you do not keep changes after a restart then see:


Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do not click the Reset button on the Safe mode start window or otherwise make changes.