User-Agent:       Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101
Firefox/52.0
Build Identifier: 

Every time I start and close Dolphin it crashes with a segmentation fault.
Selecting File->Quit and CTRL+Q causes Dolphin to crash 100% of the time.

I have also submitted a bug report upstream. 

https://bugs.kde.org/show_bug.cgi?id=380402

Reproducible: Always

Steps to Reproduce:
1. Click on the Dolphin icon from the menu
2. Click on the "Close" button
3. Dolphin crashes
Actual Results:  
Dolphin crashes with segmentation fault.

Expected Results:  
Dolphin quits.