Right-click in Safari opens "save file as" box instead of dropdown menu
It seems that whenever I get a system update on my MacBook the right-click option in Safari goes haywire. Instead of opening the dialog box (open link in new tab, new window, download as, save as, etc.) it opens a window prompting you to enter a file name to save the file (photo attached). Once you click "cancel" this window disappears and the real right-click menu is visible. I've tried messing with the Mouse and Safari settings but never figured out how to fix this. After a while when I've updated the OS it goes away, but it's happened like the last three times I've done a system update. Any explanation or hints on how to change this setting?
MacBook Pro 13", 10.14