I had a question from a reader recently about the lack of a spell check feature in Yahoo Mail. Did you know that the Firefox browser has a built-in spell checker that you can use anywhere online?

Let’s learn how it works. Open Firefox and click on the three-line menu icon at the top right. Choose Options from the drop-down menu.

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Scroll down to Language and make sure the box next to Check Spelling as you type is ticked.

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Here’s an example of the spell check in action using Yahoo Mail. You’ll notice that misspelled words have a red squiggly line under them.

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