Firefox offers two distinct ways to save your data, depending on your goal.
Downloading your Mozilla Firefox bookmarks to a local file is a straightforward process that serves as an essential safety net for your digital library. Whether you are switching browsers, migrating to a new PC, or simply creating a manual backup, Firefox provides a built-in "Export to HTML" tool that transforms your saved sites into a portable, universally readable file. How to Download Firefox Bookmarks as an HTML File
: In the Library window toolbar, click the Import and Backup button.
: In the window that appears, choose a destination on your computer (like your Desktop or a USB drive) and click Save . By default, the file is named bookmarks.html . Choosing Between HTML Export and JSON Backup
: Select Export Bookmarks to HTML… from the dropdown menu.