# "No video with supported format and MIME type found" **URL:** \ **Category:** Site Feedback\ **Created:** [October 30, 2026, 1:14am UTC](https://boards.straightdope.com/t/no-video-with-supported-format-and-mime-type-found/1034249 "2026-10-30T01:14:28Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![John\_DiFool](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/john_difool/32/19543_2.png) [@John\_DiFool](https://boards.straightdope.com/u/John_DiFool)\ **Post date:** [October 30, 2026, 1:14am UTC](https://boards.straightdope.com/t/no-video-with-supported-format-and-mime-type-found/1034249/1 "2026-10-30T01:14:28Z")
This always happens here when someone links to X (formerly known as Twitter), such as with **smithsb** ’s post in this political thread: > [@United States and Israel are bombing Iran {for current/ongoing events, past/future have specific threads}](https://boards.straightdope.com/t/united-states-and-israel-are-bombing-iran-for-current-ongoing-events-past-future-have-specific-threads/1028071/1909): > > [Cost of the vanity war to the US is now forty-seven billion dollars.](https://www.yahoo.com/news/world/articles/iran-live-updates-houthis-claim-070717462.html) The note comes replete with a sad piece of paper icon. Yet, if I click on it, I go to the X site and can view the video there just fine. Is this a Discourse thing, or what? What kind of plugin would I need to watch the videos here? ---
**Author:** ![Reply](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/reply/32/15952_2.png) [@Reply](https://boards.straightdope.com/u/Reply)\ **Post date:** [October 30, 2026, 3:53am UTC](https://boards.straightdope.com/t/no-video-with-supported-format-and-mime-type-found/1034249/2 "2026-10-30T03:53:56Z")
I think Muskdaddy just decided he didn’t want people to watch their videos elsewhere unless they use the native embed, which we can’t enable here because our admins are all MIA. More context near the end of this long thread: [Twitter Native Embed - Theme component - Discourse Meta](http://meta.discourse.org/t/twitter-native-embed/261792/) ---
**Author:** ![Reply](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/reply/32/15952_2.png) [@Reply](https://boards.straightdope.com/u/Reply)\ **Post date:** [October 30, 2026, 3:59am UTC](https://boards.straightdope.com/t/no-video-with-supported-format-and-mime-type-found/1034249/3 "2026-10-30T03:59:55Z")
You can install this to block your referrers to X, hiding that you’re watching it from the SDMB. That will let the video play: [Smart Referer Extension for Firefox](https://addons.mozilla.org/en-US/firefox/addon/smart-referer/) ## Before: [![](https://fightingignorance.org/2e4518a5-262b-42a1-aa03-d28e4f3a8fe5-2026-10-29-8-58-58-pm-r1yxdzbz.png) ](https://fightingignorance.org/2e4518a5-262b-42a1-aa03-d28e4f3a8fe5-2026-10-29-8-58-58-pm-r1yxdzbz.png) ## After: [![](https://fightingignorance.org/2b96b1ef-4e1b-4860-a931-814e093605d1-2026-10-29-8-58-28-pm-lnkr3gb8.jpg) ](https://fightingignorance.org/2b96b1ef-4e1b-4860-a931-814e093605d1-2026-10-29-8-58-28-pm-lnkr3gb8.jpg) Note that the extension hasn’t been updated in 7 years, and isn’t actively monitored. It might be malware, who knows. You can have AI write you a simpler/safer extension (just tell it what’s going on, and tell it to strip the referer to [twimg.com](http://twimg.com) and other twitter domains). ---
**Author:** ![Reply](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/reply/32/15952_2.png) [@Reply](https://boards.straightdope.com/u/Reply)\ **Post date:** [October 30, 2026, 4:03am UTC](https://boards.straightdope.com/t/no-video-with-supported-format-and-mime-type-found/1034249/4 "2026-10-30T04:03:35Z")
Or you can add a new bookmark, and copy and paste this as the URL: ```javascript javascript:(()=>{const m=document.createElement('meta');m.name='referrer';m.content='no-referrer';document.head.append(m);document.querySelectorAll('video').forEach(v=>{const els=[v,...v.querySelectorAll('source')];if(els.some(e=>e.src?.includes('twimg.com'))){els.forEach(e=>e.referrerPolicy='no-referrer');v.load()}})})(); ``` Like this: [![](https://fightingignorance.org/1eb53573-d13b-4372-ab96-d42525def9ba-2026-10-29-9-03-00-pm-mzey4atn.png) ](https://fightingignorance.org/1eb53573-d13b-4372-ab96-d42525def9ba-2026-10-29-9-03-00-pm-mzey4atn.png) Click that on a page and the video will work. It’s Javascript that unblocks the video by hiding the referrer for you. ---
**Author:** ![gnoitall](https://avatars.discourse-cdn.com/v4/letter/g/bb73d2/32.png) [@gnoitall](https://boards.straightdope.com/u/gnoitall)\ **Post date:** [October 30, 2026, 1:11pm UTC](https://boards.straightdope.com/t/no-video-with-supported-format-and-mime-type-found/1034249/5 "2026-10-30T13:11:26Z")
> [@Reply](#): > > Note that the extension hasn’t been updated in 7 years, and isn’t actively monitored. It might be malware, who knows. It’s also desktop Firefox only. I do most of my SDMB’in on my phone, so the specific extension suggestion doesn’t help, although the idea is good. I found an extension called “Referer Policy” which accomplishes the same thing on Firefox mobile. > **[Client Challenge](https://addons.mozilla.org/en-US/firefox/addon/referrer-policy/)** ---
**Author:** ![gnoitall](https://avatars.discourse-cdn.com/v4/letter/g/bb73d2/32.png) [@gnoitall](https://boards.straightdope.com/u/gnoitall)\ **Post date:** [October 30, 2026, 7:12pm UTC](https://boards.straightdope.com/t/no-video-with-supported-format-and-mime-type-found/1034249/6 "2026-10-30T19:12:31Z")
Replying to myself to add after edit window closes: I can’t seem to find a configuration choice for this extension which will allow me to have both Twitter and Youtube embedded videos functioning at the same time, so I may just give Twitter a pass and remove the extension until something better comes along. ---
**Author:** ![Reply](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/reply/32/15952_2.png) [@Reply](https://boards.straightdope.com/u/Reply)\ **Post date:** [October 30, 2026, 7:33pm UTC](https://boards.straightdope.com/t/no-video-with-supported-format-and-mime-type-found/1034249/7 "2026-10-30T19:33:37Z")
I’ll try to make one (an extension) that can fix Twitter and YouTube here. Anything else?