Firefox: spell check any field


I can’t spell. That no joke. If you have read my blog for any length of time, you will know this. One of my saving graces has been the built in spell checker in Firefox (I’ve already used it 5 times in this post!)

By default Firefox will only spell check large text areas. This is great for the bodies of forum and blog posts, but it doesn’t help when I am filling out a single line text box, like the subject of this blog, or a forum topic title.

There is a solution to this, so you can have Firefox’s spell check available to all fields in a browser:

In Firefox, do the following (ignore all quotes)

  1. type this in the browser address bar “about:config”
  2. look for “layout.spellcheckDefault”
  3. change the value to “2”
  4. restart firefox


  1. Excellent! Thanks for posting this.

    BTW, anyone who might not realize how to “do” this, when you find layout.spellcheckDefault right-click and choose “modify”, enter 2 in the field box, hit “okay” and you’re set to restart Firefox.

  2. Great post! It was very useful to me. This spell check in browser has been bugging me for a while, all I had to do was Google it, and viola you had the solution. Thank you!!!

  3. Outstanding, thanks!! My Firefox 3.6 wasn’t spell checking Facebook’s News Feed entries until I did your trick, thanks!

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