Learn to type decently

Two finger keyboard writers have no more excuse. Addictive Typing Lessons is a Firefox extension that leads users through 26 predefined lessons to learn from the basic fjfjfjf to master the full keyboard once and for all.

It keeps time and error statistics so you can easily track your progress, switch to a larger font. When it comes to words, you can edit the source file and add any other word you want, which useful since only English words are provided.

Even more useful is the ability to design your own lesson. Just enter the letters you think you need to practice on and it will generate words (from the source file) with them. Plus it is super simple to understand and use. A very nice extension!