Mozilla has released Firefox 73.0.1 today, February 18th, 2020, to the Stable desktop channel for Windows, Mac, and Linux with crash fixes for users of Windows and Linux devices. This release also fixes a loss of browser functionality in certain circumstances and RBC Royal Bank website connectivity problems. The previous Firefox stable release added NextDNS as a new DNS over HTTPS provider, bug fixes and developer changes, as well as default zoom setting and high contrast theme improvements. Mozilla also added support for Cloudflare’s DoH servers by default which made people think about too much control over Firefox users’ data being given to one company.
Source: https://www.bleepingcomputer.com/news/software/firefox-7301-released-with-fixes-for-linux-windows-crashes/