Depois de uma atualização abre 4 links pra download, ficou desagradável, pois não acho seguro add-ons que abre página duvidosa!

used yo work now it just sends you to their site and there gives you links to convert it on other sites... 🤷‍♂️ not worth the trouble

Fake!

This is more of an ad delivery service than an MP3 grabber. It's not worth your time.

This add-on track your IP by redirect you to napstr.org with;
google-analytics.com
z.moatads.com - Is a bogus website, used by hackers to redirect traffic to sponsor links or sponsor ads or to promote FAKE Remote Support Services. It generates pop-ups, ads and banners via a malicious browser extension (browser add-on), which is a part of an adware.

But main content mp3 320 kbs (by default) you download from ytapivmp3.com.

Not work!!!!!!!!!!!!!!!!!!

used to work well, no longer works.

UPDATE October 20, 2022
Add-on no longer works. Only attempts to redirect to a site that I cannot reach. according to some looking around, this is a site to avoid at all costs. I think I'm done returning to this add-on again and again. Do not use. I am also going to report the add-on.

UPDATE Oct 10-22:
You *MUST* use a strict pop up blocker add on and deny the page from opening any pop up windows. When clicking the "Download MP3" button, you will get a pop up. Also the first click after refreshing the page, and every other click with a gap of 10 seconds anywhere on the page. These pages will be everything from "adult content" pages to fishy/phishy add-on advertisements.
Not every click on the green button will work to start the download either. You may need to refresh the page.

Update: Is working again. Simply click the "MP3" button next to the view count on the video, click your desired bitrate on the next window, and done!

Hasn't worked for a little while now. Downloads a 0KB file. Last checked: 08-24-21, 10P GMT

Worked only few hours and now, every time I try to download an MP3 I have NOT FOUND message.
Uninstalled.

Not found

You are not authorized to view this page.

rcyoutube gives you all in 128kbps or lower. Don't download from them.

has gotten very spammy, but still you get .mp3 for 3. When you click their red button you get another couple of screens, be very careful until you suss them out, it's always the same pattern.

never click on the spam it sends you to. there's usually and x in the top right hand corner or you can press escape then close the extra tab it opens.

I have learned to live with the spam.