www.pandora.com - see bug description

[Grandsteel]

URL: https://www.pandora.com/
Browser / Version: Firefox 55.0
Operating System: Windows 7
Problem type: Something else - I'll add details below

Steps to Reproduce

1. Navigate to: https://www.pandora.com/
2. Play most of the song

Expected Behavior:
Music plays normally through the entire song
Actual Behavior:
Song after most of the music has played layers a second copy of the song over the first.

This started around the same time as the multiprocess testing began.

From webcompat.com with ❤️

[adamopenweb]

Thanks for the taking the time to report this @Grandsteel!

Looks like this bug has already been reported on Bugzilla. I did a test to see if disabling multi-process would fix the issue, but it didn't unfortunately. Hopefully we'll track down this issue soon.

Marking this as a duplicate of this bug:
https://bugzilla.mozilla.org/show_bug.cgi?id=1364476