https://addons.mozilla.org/en-US/firefox/addon/auto-shutdown-ng/?src=api

It works for me.

This extension will close Firefox once all downloads have finished and that may not be what you have in mind.

What do you mean with 'downloads page'?

Do you mean the folder where you saved the file or do you mean the Download Manager window in Firefox?

The new Download Manager no longer opens automatically once downloads have finished, but Firefox shows an animation and a highlighted arrow on the Navigation Toolbar to notify you.

• https://support.mozilla.org/kb/Downloads+window

Firefox manages downloads in the Downloads folder in the Library (History > Show All History)

• Downloads are treated as history items: clearing history removes included download items and vice verse.
• When downloads are in progress you see an animated download button on the Navigation Toolbar showing an estimate of the remaining time
• The Download button gets a green highlight once all download are finished to make you aware that new downloads are available.
• Pause and Resume can be found in the right-click context menu of an item.

You can display the new Download Manager in a tab by opening the about:downloads page and consider to open this page in a separate window.

You can set the Boolean pref browser.download.useToolkitUI to true on the about:config page to revert to the classic Download Manager and also make all download settings reappear in "Options > General".

• http://kb.mozillazine.org/about:config

Look for an Add-on from; https://addons.mozilla.org/en-US/firefox/ Search and you shall find. Download Status Bar.

@cor-el.

Your tip of set browser.download.useToolkitUI to true worked perfectly for me.

Thanks.