&gt; There is a lot to be said for having choice. Just because the dominant browser today is OSS (Chrome) doesn&#x27;t mean Mozilla should declare victory and pack its bags with Firefox.<p>Just since this is repeated so often: Chrome is not and never has been open source software in any shape or form. Chromium is OSS, but has only a tiny fraction of Chrome&#x27;s market share and AFAIK nobody really knows what the differences between those two are (outside of the obvious: Flash player, pdf reader, etc.). Btw, Firefox is still the only major browser that&#x27;s OSS, neither Safari nor Edge&#x2F;IE are open source.<p>This isn&#x27;t academic nitpicking either. Mozilla had to build a PDF reader from scratch (pdf.js), it couldn&#x27;t just reuse what Chrome was using to display pdfs, since it wasn&#x27;t open source. However everyone can now use pdf.js for the same task.