Mozilla has released Firefox 75 today, April 7th, 2020, to the Stable desktop channel for Windows, Mac, and Linux with bug fixes, new features, and security fixes. With the release of Firefox 75, all other Firefox development branches have also moved up a version bringing Firefox Beta to version 76 and the Nightly builds to version 77. Firefox 75 promises better performance on Windows 10 due to the integration of DirectComposition that further improves rendering on laptops with built-in Intel graphics cards with the help of the Web Render 2D rendering engine.
Source: https://www.bleepingcomputer.com/news/software/firefox-75-released-with-windows-10-performance-improvements/