Firefox ESR

Firefox ESR is intended for system administrators who deploy and maintain the desktop environment in organizations such as schools, governments and businesses.

• Firefox Quantum arrives in the ESR channel. Key features include:
• A completely new browser engine, designed to take full advantage of the processing power in modern devices
• A redesigned interface with a clean, modern appearance, consistent visual elements, and optimizations for touch screens
• A unified address and search bar. New installs will see this unified bar. Learn how to add the stand-alone search bar to the toolbar
• A revamped new tab page that includes top visited sites, recently visited pages, and recommendations from Pocket (in the US, Canada, and Germany)
• An updated product tour to orient new and returning Firefox users
• Support for enterprise environments, with a policy engine that allows customized Firefox deployments using Windows Group Policy or a cross-platform JSON file
• Firefox now exclusively supports extensions built using the WebExtension API. Unsupported legacy extensions will no longer work in Firefox 60 ESR, but they will continue to work in Firefox 52 ESR, which will be supported until September 2018.Learn more about our efforts to improve the performance and security of extensions
• TLS certificates issued by Symantec before June 1st, 2016 are no longer trusted by Firefox. The "security.pki.distrust_ca_policy" preference can be set to 0 to reinstate trust in those certificates