i wanna try to add savefromnet in my browser but it can't add

i wanna try to add helper to add in my browser but when i try to add they need permission but when i give permissionit wanna open a new windows and open my browser as administrator but i wanna use it on my standard user but it can't add there i try many time but can't add there so please help me...to add helper and post answer because in my lab many user are facess these problem.