I couldn't find a plugin with proper Delicious integration The Delicious addon doesn't seem to have been marked as working with Firefox 4, so it won't install.

I couldn't find a plugin with proper Delicious integration The Delicious addon doesn't seem to have been marked as working with Firefox 4, so it won't install. Have you tried the about:config hack to ignore the plugin compatibility check? Does the Delicious addon work if so?