Be patient. If you have a lot of extensions installed extension manager can appear to hang while uninstalling. Try again and just wait, chances are it will uninstall.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.