With a Mobile Browser Simply use your mobile browser and go to m.facebook.com (this is the mobile version of the webpage - do not just use facebook.com) and login to your account. Now go to your messages and open the conversation with the audio message you want to download. Select the audio file, and the file should begin downloading. If you are on a desktop computer or laptop, then the process is similar. Again, go to m.facebook.com and then to your message with the audio file. Click the three vertical dots on the right side of the audio clip. Select