Win10PE SE & Mozilla Firefox sounds

Internet Explorer has sounds but Mozilla Firefox does not have. How can I correct this?

changed topic title to
Win10PE SE & Mozilla Firefox sounds

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Nikky provide update for personal settings on Mozilla Firefox ESR (P) Plugin

Download the latest Plugin on the server and see if that helps you get sound.

on Plugin: "Add Custom Settings" checkbox, at right there is "open folder" button
copy your FireFox profile to that folder.
see if that helps...

ps:
See: Small Green Download Button on Plugins - Reply 1: Update Plugins

I managed to create Windows Pe, exept Firefox had no sounds. Then I updated plugins. Now I get errors when I try to create Windows Pe. I have attached the log file. Can you tell, what I did wrong?

Your Antivirus prevent deleting some temp folders from your previous build.

See topic:

False Positives - AntiVirus failure (False Alert)
http://theoven.org/index.php?topic=2710.0