Hello! This is the new download system/flow for Firefox, but if you want to enable the downloads dialog, you can do this by: # Click the Application Menu (three lines icon in the toolbar) and click Settings; # Scroll down until you see the '''Applications''' section; # Select the file type that you download and click the arrow on the right side of it; # Select ''"Always ask"'' # Do this for every file type you download More info: https://support.mozilla.org/en-US/kb/where-find-and-manage-downloaded-files-firefox https://support.mozilla.org/en-US/kb/change-firefox-behavior-when-open-file https://support.mozilla.org/en-US/kb/manage-downloads-preferences-using-downloads-menu

Thank you Elison. I follow the links you sent and it's just resolve the problem.