Different computer systems use different file formats and may not be compatible. You might want to try using sync. Note: Some data between different Firefox versions or computer systems are not compatible. You can sync bookmarks, history, and passwords. https://support.mozilla.org/en-US/kb/how-do-i-set-sync-my-computer Sync your bookmarks, history, passwords, add-ons, and open tabs with another copy of Firefox. Learn how to set up Sync. https://support.mozilla.org/en-US/kb/how-do-i-choose-what-types-information-sync-firefox We'll show you how to choose which types of information (bookmarks, history, add-ons, and passwords) to share across all your devices through Firefox Sync. https://support.mozilla.org/en-US/kb/firefox-sync-troubleshooting-and-tips https://support.mozilla.org/en-US/kb/sync-firefox-bookmarks-and-browsing-history-iOS Sync your passwords, history, tabs, and other browsing information across your iOS, Android, and desktop computers with Firefox Accounts.