The download history now shows as a folder in the Library.
You can have the downloads removed from the download manager window automatically if a download has finished, but that won't remove them from the Downloads folder in the Library (history manager).

I just want FF to clear my download history when a download is complete, but at the same time remember my browsing history. I can't do that anymore because both of them are now one check box instead of two and the check box now reads "Remember my browsing history and download history". So I can only have FF not remember my browsing history and clear my download history -or- remember my browsing history and keep my download history.

I took a quick look to about:config and I found this line :)

browser.download.manager.retention

the doc said here : https://developer.mozilla.org/en-US/docs/Download_Manager_preferences

Indicates how long downloads are retained in the Download Manager's queue after the download is completed successfully. 0 indicates that the download should be removed upon completion; 1 indicates that completed and canceled downloads should be removed on quit; 2 indicates that downloads should never be removed automatically.

So I just set up browser.download.manager.retention = 0 It work fine for me. Hope this could help you ;)

Hey thanks, that did the trick. Though I still hope Mozilla puts this back in the settings.

Note that setting this pref to 0 only removes the entry in the (classic) Download Manager (Firefox > Downloads), but you will still see those downloads in the Downloads folder in the Bookmarks/History manager.

thanks cor-el, noted.