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

Firefox won't play twitter videos

  • 3
  • 1 nwere nsogbu anwere nsogbu a
  • 1 view
  • Nzaghachi ikpeazụ nke zeetee

more options

Videos on twitter won't play on firefix. I tried on edge and they worked just fine.

I have tried doing the firefox refresh thing and safe mode, still couldn't play twitter videos.

Videos on twitter won't play on firefix. I tried on edge and they worked just fine. I have tried doing the firefox refresh thing and safe mode, still couldn't play twitter videos.

All Replies (3)

more options

Make sure you are not blocking content.


One issue that seems more common lately is Firefox's Tracking Protection feature. When it is blocking content in a page, a shield icon will appear at the left end of the address bar next to the padlock icon. This article has more info on managing this feature: Tracking Protection {web link}

more options

You can check the Web Console for messages about media content.

more options

FredMcD said

Make sure you are not blocking content.

One issue that seems more common lately is Firefox's Tracking Protection feature. When it is blocking content in a page, a shield icon will appear at the left end of the address bar next to the padlock icon. This article has more info on managing this feature: Tracking Protection {web link}

Thank you for the response! I do not think tracking protection is the issue, seeing as how there is no shield icon as described in the info you linked.

cor-el said

You can check the Web Console for messages about media content.

Here is what I got from the web console:

Content Security Policy: Ignoring ‘x-frame-options’ because of ‘frame-ancestors’ directive. Unhandled promise rejection undefined init.en.c52be7b5762623fc5770.js:2:87173 Source map error: request failed with status 404 Resource URL: https://abs.twimg.com/k/en/init.en.c52be7b5762623fc5770.js Source Map URL: init.en.c52be7b5762623fc5770.js.map[Learn More] Source map error: request failed with status 404 Resource URL: https://abs.twimg.com/k/en/5.pages_permalink.en.d01701ba3cce1f0d3917.js Source Map URL: 5.pages_permalink.en.d01701ba3cce1f0d3917.js.map[Learn More] Source map error: request failed with status 404 Resource URL: https://abs.twimg.com/k/en/0.commons.en.702513278bdebf316af6.js Source Map URL: 0.commons.en.702513278bdebf316af6.js.map[Learn More] Source map error: request failed with status 404 Resource URL: https://abs.twimg.com/k/en/14.video_player_a.en.dbe62b222b7bf144d98e.js Source Map URL: 14.video_player_a.en.dbe62b222b7bf144d98e.js.map[Learn More] Unhandled promise rejection undefined