Make sure you have Firefox installed and then install the Teaksta Firefox toolbar add-on.
Restart Firefox to complete the installation. When Firefox starts, you should see a new Teaksta toolbar.
Using Teaksta
Choose a language, a topic, and an activity and click "Enhance" to enhance the current page.
Click "Restore" to remove the activity.
To have Teaksta automatically enhance every page you load, click on the VIEW symbol at the beginning of the toolbar.
Read more about the currently supported topics and activities.