UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.110 Safari/537.36

Steps to reproduce the problem:
1. Execute 'chromium http://www.google.com' in terminal, or
click a URL in okular, evince, hexchat, or any other external program. The existing chrome window opens a new tab and rises above other windows.
2. Press Ctrl+W to close the newly opened tab.

What is the expected behavior?
The new tab should be closed

What went wrong?
Ctrl+W is sent to the external program that caused an existing chrome window to open a new tab. Thus, the external program is closed instead of the newly opened tab.

Did this work before? No 

Chrome version: 49.0.2623.110  Channel: stable
OS Version: 4.4.6
Flash Version: Shockwave Flash 21.0 r0

When an external application causes an existing firefox window to open a new tab, the firefox window rises above other windows and also becomes the active window.

I think firefox is doing the right thing.

Chrome's behavior is confusing and unproductive.