Its only as safe as you are comfortable with the site. Ask yourself, "do I trust this site?". If you do then go for it. If not, try to find what you're looking for on a reputable site that you know and trust.
http://uploading.com/files/1G9BDP3J/Twitter%20Friend%20Adder%20V2.1.exe.html? http://uploading.com/files/1G9BDP3J/Twitter%20Friend%20Adder%20V2.1.exe.html
can someone just download it and scan it eith virus total dam stop talking about what i should do and actually do something. dont answer if its not helpful dam.