We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Since upgrading to FF 66 Netflix videos don't play.

  • 3 replies
  • 1 has this problem
  • 17 views
  • Last reply by HLMSPL

HLMSPL
HLMSPL
more options

I had no problem playing Netflix videos before FF 66. I'm now on FF 66.0.1. I disabled all add-ons, restarted FF to no avail. This issue MIGHT be DRM related since preview vids play correctly in Netflix. They aren't DRM controlled. The full videos, which are DRM controlled, do not play. 'Play DRM-Controlled Content' is checked in my FF settings. I can play full videos as expected in Chrome. I prefer not to for obvious reasons. The NF error code is F7701-1003. The msg is 'There appears to be a problem with Firefox which is preventing Netflix from starting playback'. I've gone through the steps that NF suggest for this issue. Doing that doesn't resolve the issue.

I had no problem playing Netflix videos before FF 66. I'm now on FF 66.0.1. I disabled all add-ons, restarted FF to no avail. This issue MIGHT be DRM related since preview vids play correctly in Netflix. They aren't DRM controlled. The full videos, which are DRM controlled, do not play. 'Play DRM-Controlled Content' is checked in my FF settings. I can play full videos as expected in Chrome. I prefer not to for obvious reasons. The NF error code is F7701-1003. The msg is 'There appears to be a problem with Firefox which is preventing Netflix from starting playback'. I've gone through the steps that NF suggest for this issue. Doing that doesn't resolve the issue.

Chosen solution

Do you have history to be remembered?

Read this answer in context 👍 1

All Replies (3)

TyDraniu
TyDraniu
  • Top 10 Contributor
more options

Chosen Solution

Do you have history to be remembered?

HLMSPL
HLMSPL Question owner
more options

TyDraniu said

Do you have history to be remembered?

I had History disabled. After reading your question I enabled it and restarted FF. NF videos are playing properly now. Thank you!

Modified by HLMSPL

HLMSPL
HLMSPL Question owner
more options

p.s. it seems odd that Remember History has to be enabled for this. I seem to remember having it disabled in pre-66 releases. Maybe I'm wrong. :) Thanks again.

Modified by HLMSPL