 <p>I found this to be a difficult thing to figure out. I already had an HTML editor installed as part of Eclipse, but it wasn't getting loaded.</p> <p>Go to Preferences > General > Editors > File Association and click on *.html (and do the same for *.htm). If you have an HTML editor installed, you should see it in the list. Just click it and then click Default to make Eclipse open HTML files using the HTML editor.</p> <p>If you don't have an HTML editor installed, WTP is fine, per Rahul's suggestion. You may then need to do the above steps to make sure the HTML Editor is chosen when you edit an HTML file.</p>