Why is the "previous" view no longer available under the right click menu?

[Cp123456]

Hi all. 

Before this every time I clicked on a hyperlink in an article to jump to the reference section, I used to be able to just right-click, select previous view and go back directly to where I was reading. 

Now I have to do this by going to the menu bar or using the shortcut keys, I think this previous view should be returned to the right-click menu. 

Thank you.