You can do a backup: *[https://support.mozilla.org/en-US/kb/restore-bookmarks-from-backup-or-move-them#w_backup-and-restore Backup and restore] *[https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer Export Firefox bookmarks to an HTML file to back up or transfer bookmarks] *[https://support.mozilla.org/en-US/kb/import-bookmarks-html-file?esab=a&s=import+from+hmtl&r=5&as=s Import Bookmarks from a HTML file]

See: *http://kb.mozillazine.org/Backing_up_and_restoring_bookmarks_-_Firefox You can copy the places.sqlite file to the profile folder on the other computer or use the most recent JSON backup in the bookmarkbackups folder to restore the bookmarks. You can use this button to go to the Firefox profile folder: *Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder) *http://kb.mozillazine.org/Profile_folder_-_Firefox Note that the "AppData" folder in Windows Vista and later Window 7+ versions and the "Application Data" folder in XP/Win2K are hidden folders. *http://kb.mozillazine.org/Show_hidden_files_and_folders