UserAgent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2735.0 Safari/537.36

Steps to reproduce the problem:
Using the NVDA screen reader:
1. Press CTRL + Shift + O to open the Organize bookmarks tab.
2. Try navigating the tree view and the list views using the tab key and arrow keys.

What is the expected behavior?
The selected items should be spoken by NVDA when using the tab and arrow keys, including contextual menus on any selected items.

What went wrong?
Almost nothing is spoken by NVDA and the Organize Bookmarks tab window is essentially unusable by screen reader users.

Did this work before? N/A 

Chrome version: 52.0.2735.0  Channel: canary
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: Shockwave Flash 22.0 r0

Thank you for all of your ongoing efforts regarding accessibility improvements!