Firefox Campus Edition
Full user review
"Downloading this risks damaging your existing Firefox."
It's possible that some people may find this slightly more useful than the most recent version of Mozilla Firefox.
It's unlikely that you will find the Campus Edition more useful than the most recent version of Mozilla Firefox. Furthermore, you risk damaging your existing Mozilla Firefox program when you download the Firefox Campus Edition.
You are not downloading another separate browser when you download the Campus Edition of Mozilla Firefox. What you are doing, whether you know it or not, is modifying (ie. potentially damaging) your existing Mozilla Firefox program.