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Firefox 53.0 Won’t Work on Linux PCs with CPUs Older Than Pentium 4, AMD Opteron

Yes, we’re talking about Firefox 53.0, which received its first Beta build today, and it looks like the preliminary release notes have been published so you can share with you its upcoming features and changes. First of, you should know that the Mozilla Firefox 53.0 web browser is expected to launch next month on April 18. As for the new features that could be implemented in the Firefox 53.0 release, we can mention the ability to apply lightweight themes in private browsing windows, support for the Reader Mode to display the estimated reading time for a particular web page, as well as the implementation of two new “compact” themes, one light and one dark.