UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36

Steps to reproduce the problem:
1. Download a "dangerous" file, e.g. SWF (or EXE?), easiest to simply directly visiting a URI, e.g. Adobe flash test file:
http://wwwimages.adobe.com/www.adobe.com/swf/software/flash/about/flash_about_793x170.swf

What is the expected behavior?
Download toolbar popup at bottom of page has one button named "Keep" and one button named "Discard" when a "dangerous" file has finished downloading.

What went wrong?
Only "Discard" button is visible, only way to "Keep" a file now is to view all downloads and do it from there, which is confusing at best, especially since the message next to the button is a question, not a statement. Context menu has nothing of interest either.

Did this work before? Yes 

Chrome version: 65.0.3325.181  Channel: stable
OS Version: OS X 10.9.5
Flash Version: