UserAgent: Mozilla/5.0 (Android 5.0.2; Mobile; rv:48.0) Gecko/48.0 Firefox/48.0

Steps to reproduce the problem:
1. I select to import Firefox bookmarks
2. A import finished message appears but it's not true
3. 

What is the expected behavior?
Success importing bookmarks

What went wrong?
It hasn't import anything

Did this work before? N/A 

Chrome version: <Copy from: 'about:version'>  Channel: stable
OS Version: 
Flash Version: