Convert2mp3 does not download the music anymore?

I accidentally when I wanted to download the music and convert asked me if I would like to download it via Firefox or my mp3 player pressed on music because I thought it would be right

Now it does not download the music anymore but opens it only via the mp3 player

But I want to have them on my phone, how can I undo this decision so that the convert does not "download" the music through my mp3 player anymore?

Ps: I have a Huawei p10lite

Actually, it would be a setting in the browser, which happens to a particular file type.

But I do not know about mobile devices. Do you use a browser there? Which?

I use Mozilla Firefox

And convert2mp3 just opened on Google…

Do not know the setting options of the mobile FF aus'm head. But that should be in the options something for applications that must reset or change that you are asked.

Since I can't post a picture in a comment, here's how it looks on the PC:

The mobile version does not have that many options, but you should find something like that for MP3.