do not work, just open an other site to download and not even mp3, mp4...

Converts to MP4, not MP3.

no download button

Statt zu downloaden, wird Werbung in neuen Tabs geöffnet. Grausam.

Downloads often fail, which is frustrating.

It's a spam. Avoid !!

Tidak ada tombol apa2

ほぼ広告ウイルス

détecté comme nocif par Ublock : je désinstalle

When you click on the icon of this addon. It instantly redirects to a belgian domain by the name of conv2, but also downloads through apiyt, a malaysian site.
Once "download" is clicked. The website redirects you to sippansy, an advertising provider service, which then automatically redirects you to a pornography site, most often "Chaturbate" or "RealLifeCams"
The addon has zero warning that it will redirect to both sippansy and by extension these porn sites.
It also has no 18+ warning for children under the age of 18. Endangering minors.
The cookies recorded were:
mywatchtones 1 cookie
apiyt 9 cookies
conv2 4 cookies
realcam 7 cookies
chaturbate 15 cookies

I recommend avoiding this malware.

Takes you a third-party site (I can do that for myself) and then you have to disable your various security addons so it can redirect you and shower you with adverts. Uninstalled

The addon no longer works as of 8-5-23

sadly, this app was once THE go-to app for grabbing an mp3 file, then a couple of YT and/or Firefox updates later it was just easier to key in the link to the page directly; now even that's gone, and you only get an immediate warning of malicious page/site - no matter what is tried or instructions followed - thanks for something really good up until now, but app REMOVED

Absolutely NOT working, no matter what I tried !!! useless, so uninstalled on spot......

just use the website at this point...