How to make sure this

[shyjuu]

Your question

I want to download videos and downloaded videos should be with file name 1 , 2 ,3 , I mean it should be named as we download videos

Addon & CoApp version and details

I want to download videos and downloaded videos should be with file name 1 , 2 ,3 , I mean it should be named as we download videos

[Mattmjs]

You can name them however you want by using
download as which provides a dialog before the download starts.