Theoretically Firefox is Free, and especially Free from spyware, whereas with Chrome we do not have the same level of assuredness. Google has a high positive reputation because of the Don't Be Evil mantra, but we're all questioning whether Google has gone to Evil. But if you run Firefox and Chrome side-by-side it's clear that Chrome is far advanced over Firefox. Additionally, Firefox does some bad things. The video has details for you to consider.
About the Author(s)
David Herron:
David Herron is a writer and software engineer focusing on the wise use of technology. He is especially interested in clean energy technologies like solar power, wind power, and electric cars. David worked for nearly 30 years in Silicon Valley on software ranging from electronic mail systems, to video streaming, to the Java programming language, and has published several books on Node.js programming and electric vehicles.