What is Helper, and how does it work?

SaveFrom Not Working? Solutions for Seamless Video Downloads savef ' helper' “EXTENSION” is THE EASIEST way to download Youtube videos without leaving the page or pausing the video savef It's because YouTube's coding no longer includes links to such files, you won't be able to download 480p or 1080p The YouTube player employs

savef Considering the fact that the only usage of is to download videos from websites that do not allow downloads, using is