Fixed - Large animated images may fail to play and may stop other images from loading.(Fixed in Firefox ESR 38.0.1 was already fixed in Firefox 38.0) Fixed - WebRTC H264 video streams from CiscoSpark native clients are not decoded correctly.Fixed - Users who import cookies from Google Chrome can end up with broken websites.Fixed - Systems with first generation NVidia Optimus graphics cards may crash on start-up.Firefox is built on top of the powerful new Gecko platform, resulting in a safer, easier to use and more personal product.įirefox includes pop-up blocking, tab-browsing, integrated Google search, simplified privacy controls, a streamlined browser window that shows you more of the page than any other browser and a number of additional features that work with you to help you get the most out of your time online. The key features that have made Mozilla Firefox so popular are the simple and effective UI, browser speed and strong security capabilities. It offers great security, privacy, and protection against viruses, spyware, malware, and it can also easily block pop-up windows. Mozilla Firefox is a fast, full-featured Web browser.