- If you don’t have it already, download and install desktop Firefox (I prefer the Nightly builds).
- Open the My Mixtapez page corresponding to the song you want download. e.g. https://mxtpz.me/a/108717.
- Start playing the song you want.
- Right-click the page background to bring up Firefox’s context menu.
- Click Page Info.
- Click Media.
- Sort the results displayed by Type so that Audio is at the top.
- The entry corresponding to audio is the song that is currently playing. Select it as shown below:
- Click Save As… and download the file.
- Repeat Steps 3 to 9 for every song you want on the page from Step 2.
- Open File Explorer.
- Navigate to the location you downloaded the file to in Step 9.
- Click the File Explorer View tab.
- In the Show/hide group, check the File name extensions box.
- Now that the file name extensions are visible, change them to .mp3 for all the files you downloaded in Steps 9 and 10 via renaming.
- In the Show/hide group, uncheck the File name extensions box (it’s good to leave this unchecked in general as accidentally changing file name extensions can cause serious problems later.)
The files in Step 15 will all be the original, playable mp3 files.
The Page Info feature is one of the main reasons Firefox continues to by my main browser; it’s basically a built-in content sniffer.