Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Videos are not loading and Reddit is sometimes slow

  • 3 replies
  • 0 have this problem
  • 1 view
  • Last reply by Franz3

more options

Hey, Twitch dosnt work for me (error #4000) and neither do Reddit videos. Pictures and Youtube works and I could not find a solution online. Thank you for providing this awsome browser. please keep fighting for privacy.

Hey, Twitch dosnt work for me (error #4000) and neither do Reddit videos. Pictures and Youtube works and I could not find a solution online. Thank you for providing this awsome browser. please keep fighting for privacy.

Chosen solution

franz.all said

Hey, Twitch dosnt work for me (error #4000) and neither do Reddit videos. Pictures and Youtube works and I could not find a solution online.

Do you by chance have a K or KN edition of Windows 10 ? https://support.mozilla.org/en-US/kb/fix-video-audio-problems-firefox-windows

If so then you may not have Media Feature Pack installed which includes things like codecs needed in order to fully support HTML5 players in Firefox. HTML5 players is used for video, audio and even games on sites including Twitch and Youtube. You may think well Youtube seems to work fine. However you may be more limited more so with live streams or recently uploaded YT vids in viewing them.

Read this answer in context 👍 1

All Replies (3)

more options

I suggest a web search for the Twitch error. There are many articles on the subject.

What happens when you try to play a video on Reddit?

Modified by Terry

more options

Chosen Solution

franz.all said

Hey, Twitch dosnt work for me (error #4000) and neither do Reddit videos. Pictures and Youtube works and I could not find a solution online.

Do you by chance have a K or KN edition of Windows 10 ? https://support.mozilla.org/en-US/kb/fix-video-audio-problems-firefox-windows

If so then you may not have Media Feature Pack installed which includes things like codecs needed in order to fully support HTML5 players in Firefox. HTML5 players is used for video, audio and even games on sites including Twitch and Youtube. You may think well Youtube seems to work fine. However you may be more limited more so with live streams or recently uploaded YT vids in viewing them.

more options

Thank you a lot