Firefox autocorrect?

[benol]

Is there an extension for Firefox that autocorrects typos, not capitalizing words, and such the same way Microsoft Word does? I'm really tired of having to right click on typos or going back to fix them.

[THON]

I don't think it would be such a good add on, considering if you typed something like flemboiant (flamboyant), it's first fix would be Luxembourgian. Plus if you wanted to type someone's name like benol , it would automatically switch it to Tylenol. There may be one, though... look into greasemonkey...

[benol]

I just meant one that corrects common typos, such as typos that come from keys that are close to each other. Also, I want it to capitalize first words in sentences, and correct common spelling mistakes. I can never get believe right. I always spell it belive.