Firefox – enable auto spell check in single line textboxes

Firefox by default checks spelling in multiple line text-area fields. But it does not do that in single line text-boxes. To enable automatic spell-check in text-boxes follow these simple steps:

• In Firefox address bar type about:config, and click on “I’ll be careful, I promise“.
• Scroll down to the field “layout.spellcheckDefault“, double click and change the value to “2“

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