UserAgent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0

Steps to reproduce the problem:
1. Start Canary
2. Canary crashes after 10 seconds

What is the expected behavior?
Canary should not crash

What went wrong?
Autofill sync noted as problem from here: https://productforums.google.com/forum/#!topic/chrome/XKcbV_QAVF4;context-place=forum/chrome

Did this work before? N/A 

Chrome version: <Copy from: 'about:version'>  Channel: n/a
OS Version: 10.0
Flash Version: 

Canary does not crash when autofull sync is disabled