Open Firefox on the computer that you want to put the Favorites on and then:
Click the Bookmarks button on the right side of the navigation toolbar (Windows XP: click the Bookmarks menu) and select Show All Bookmarks to open the Library window.On the menu bar, click Bookmarks and select Show All Bookmarks to open the Library window.At the top of the Firefox window, click the Bookmarks menu and select Show All Bookmarks to open the Library window.
From the toolbar on the Library window, click Import and Backup and choose Import Bookmarks from HTML....
In the Import Bookmarks File window that opens, navigate to the bookmarks HTML file you are importing and select the file.
Click the Open button. The Import Bookmarks File window will close.
Close the Library window.