Instagram Downloader (IDL Helper) convenience.I like it a lot, yes it's true sometimes is quite slow before you can even get the result of the suggestion but if you willing to wait that "(IDL Helper) " is very nice. users download MP3 or MP4 files, convert toany formats , save in different formats on this extension allows. And it is actually free I don't know if there is a subscription payment it could be but I'm not aware of.