3 ms·> Firefox is open source, but so is Chrome. Chrome is not open source.by zaro 9y ago> Firefox is open source, but so is Chrome. Chrome is not open source.iLemming 9y agoChromium iszaro 9y agoChrome is a different browser than Chromium. For example you install chrome you get Adobe Flash automatically. Yes they use the same render engine but nowadays the browser is more than simply rendering html and executing Javascript .