Download Firefox Systems and Languages What's New Privacy Give Firefox a tune up Refresh Firefox How does it work? Download a fresh copy Customize controls, options and add-ons Firefox options, preferences and settings Сите All articles and threads Customize Firefox with add-ons, plugins, and extensions Firefox controls and buttons Firefox options, preferences and settings Tab settings Bookmark options In English Firefox options, preferences and settings Connection settings in Firefox Pop-up blocker settings, exceptions and troubleshooting Change the program used to open email links How to disable the Enterprise Roots preference JavaScript settings and preferences for interactive web pages How to restore a browsing session from backup Change the fonts and colors websites use