Firefox 2.0+, by default, spell checks only multi-line text areas. To spell check single line text fields such as search boxes you typically have to right click and click "spell check this field" in the context menu. The following tweak will make it so that spell check is always on by default for ALL text fields.



1. Open a new tab and type about:config in the address bar and press Enter.

2. In the filter field type layout.spellcheckDefault

3. Double click on that entry and enter 2 into the pop up box.

4. Click OK.



You're done .

Now you should no longer have to manually turn on the spell checker to see if you are spelling a word correctly when searching or typing a forum topic title.