Running 52.2.0 and have the same issue. Multiple password prompts - add-ons are below:
Adblock Plus
Awesome Auto Archive
Enigmail
Google Search
keyconfig
Lightning
Lightning calendar tabs
LookOut
Provider for Google Calendar
Simple Search-For Extension
Running 52.2.0 and have the same issue. Multiple password prompts - add-ons are below:
Adblock Plus
Awesome Auto Archive
Enigmail
Google Search
keyconfig
Lightning
Lightning calendar tabs
LookOut
Provider for Google Calendar
Simple Search-For Extension