I have a desktop Mac. I need a web-browser - I have Safari. I have a circular symbol of red and yellow and mauve in the bar at the bottom of my screen(representing the Mozilla programme and where there are other symbol button too representing entry icons to a programme (eg my mail. Safari, date, music, etc........I have spent over 2 hours trying to download the Mozilla SO IT WORKS rather than it just sitting on the bar at the bottom of the screen. I am not on Microsoft. I simply want to download and install Firefox on the Mac and search the web. I get nowhere. Please help. Or I will simply go back to Safari.

https://support.mozilla.org/en-US/kb/how-download-and-install-firefox-mac