"Kragoth" wrote : I've just spent about an hour trying the solution mentioned above at http://docs.jboss.org/tools/2.1.0.GA/en/jsf/html_single/index.html#CodeAs... but I'm not having any success with it. My tags are still not in the list of tags when editing xhtml files. Is there a step missing? In order to have attribute completion I had to declare like this : | <element-type body-content="allowed" content="mixed" name="customTagExemple" start-tag="required"> | <description>Renders the custom Tag exemple.</description> | <attribute-type name="title" required="true" value="java.lang.String"> | <proposal type="beanProperty"/> | <proposal type="bundleProperty"/> | <proposal type="jsfVariables"/> | </attribute-type> | <attribute type="title"/> | </element-type> | I needed the <attribute-type /> and the in order to have attribute completion in the element customTagExemple. Hope it's help. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4167325#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...