Firefox can import logins via a CSV file, so if Dashlane can export in this format then you can import directly, otherwise you need to convert this export to CSV. You need to enable import CSV in the Password Manager (about:logins) via the <b>about:config</b> page as this menu item is currently hidden for performance reasons. *about:config => signon.management.page.fileImport.enabled = true *https://support.mozilla.org/en-US/kb/about-config-editor-firefox You need to close and restart Firefox to make the Import menu item appear in the gear menu on the about:logins page.