I don't see a delete option for Environment Manager object when i right click on it. Please see attached.
OK, the node will always be there and you can't remove it from the project suite. However, there is data that goes along with that node. If you double click on the node, there should be some sort of environment folder present. You can delete that to get rid of that configuration data.
However, none of this has any impact on NameMapping. I tried editing a name mapped component and I'm not getting anything about FireFox or anything there. Again, could you upload a screenshot to show what problem you're getting in editing name mapping?
