If you still have trouble finding and downloading Flash player for FireFox you can download it from these direct linked alternate sites: Flash Player 10.0.22.87 (Non-IE = Firefox, Safari, Opera):
http://get.adobe.com/flashplayer/http://www.filehi...
Firefox uses a different type of flash than IE. just get it. flash for firefox is optimized for every other browser also, so if you decided to get chrome, you wont have to reinstall flash.
You can add an application to add music. On the left side of your page, you will see a list and one is add application. Once you click on it there are many to chose from.
Or if you have a playlist online, you can copy the code and add it to your page like mine. Just click on edit on the part of the page where you want to add it. The word edit is shown on the tab above each section. As you see, I have a message of welcome, a flag and my playlist. Those were added using code under that tab section.
Then, if you want to rearrange your page, just put your mouse on each tab and drag it where you would like to it to be. You can put your music app on the left side or in the middle. The same goes for most tab sections except about me if I am not wrong.
My name is poollover because I love to play pool, and I love to collect websites. I have collected about 15 booklets so far of websites, and if you have any ones you think might be new (good ones, not dirty ones) to me, please pass them on. I am not as good looking as Tom Cruise, however, I have a tender heart and i am an honest person. I am an outgoing and open-minded person. I collect pens.