When I clicked on
Add to Firefox plugin from
It is not showing on addons manager. I have search on
extension as well as on
But when I click again on that same button 'Add to Firefox` it is showing error:
Firefox could not install the search plugin from '................. ' because an engine with the same name already exists.
So that add-on exists in my browser. How do I remove it? I am using firefox 28.0