When I go to the iJoomla website for Publisher and click on the submit media option, select image, then click on upload images from the front end, the explorer window opens up for me to browse my pc to select a photo to upload. When I try and do the same thing on my website using the super user account, nothing happens when I click the button. I've used my iPhone, iPad, Android, Google Chrome, Firefox, IE, Microsoft Edge, uninstalled the component, removed all tables in SQL, then reinstalled it and nothing. I honestly think it's a bug. I am using version 3.0.20 as well.
I just tried the audio button, tried adding a .mp3 to my site root folder and writing the path to the file and I entered a URL for audio on a webpage. I am confused. Is it asking for a URL for the website that the URL is on, or where it's located in my web folder? I also tried multiple variation to get the audio to work and nothing.