সকল প্রোডাক্ট সহায়তা ফোরাম

I am trying to add an mp4 video to my website using the following code:

<video width="320" height="240" controls>
  <source src="images/###.mp4" type="video/mp4">
</video>

where ### is the name of the video file. I get the following error message:

"No video with supported format or MIME type found."

In the console the following is displayed:

"Media resource http://127.0.0.1:5502/images/###.mp4 could not be decoded. video.html All candidate resources failed to load. Media load paused. video.html Media resource http://127.0.0.1:5502/images/###.mp4 could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_METADATA_ERR (0x806e0006)"

Runs just fine in Chrome and I have no pop-up blockers installed. Autoplay is set to be allowed for all websites.

Windows 11 version 23H2. Firefox version: 126.0 (64-bit)

My PC froze and had no choice but to reload win 10. After doing so I had the choice to download win 11 for free which I did. When I download Firefox all of my bookmarks were missing. I have tried to follow your instructions to retrieve them i.e. Troubleshooting... Application Basics ... Profile Folder...Open Folder... which opened >>> C:\Users\AppData\Roaming\Mozilla\Firefox\Profiles\42o9xo83.default-release . Sadly, I am not a Teckie and I do not have a clue what the next move is to get my bookmarks back.

Can you please help me to get my bookmarks back. Thank you MM

PS... (I have deleted my username for security)

I went to settings and then to privacy and security and tried to find auto fill to remove credit card info. I couldn't find the setting the browser told me to find.

I have used Firefox for Windows for many years and have had no problems until recently. I have been unable to print my emails: when I click on the printer icon in the upper right corner of an email nothing happens. I was wondering if there was something in the settings that was causing this problem. Thank you!

hello,when i download my attached files in mailbox(mail.xmvds.com), it can be everytime warnning me ,but i trust this url ,it is my company's office mailbox ,how can it unblock it ,?

I cannot begin to express how frustrating this change is... and I struggle to comprehend why anyone would introduce this by writing it into software, but I'm sure it has something to do with money and profits.

There was a time when you could do a search and get a list of results, and then view a specific listing, and then return to your search page and view another listing. however, those days are evidently gone, as now when you return to your search page, it's slightly different results in a different order. Most are there, but some are missing entirely, and the ones that remain are varied slightly. Whaaaat for!? It is truly a form of torture.

Now in fairness I can't tell if it's the browser (Firefox), or the search engine (Duck Duck Go), because I am unfortunately not a developer. However, whatever is causing it should be fixed out of a sense of social responsibility to the greater good.

If anyone knows why this happens and knows how to fix it, I would be sincerely grateful if you shared the solution.

E

I have installed firefox in my laptop for years. after latest update, firefox runs just fine only for the 1st time, then after closing the app / restarting the laptop, firefox keep giving error (attached) I have tried to refresh, run troubleshoot mode, uninstall and reinstall again at one point I was able to recreate the issue only after reinstalling firefox 126.0.1 portable version and then syncing to the profile ( run ok for 1st time, then it broke down after closing it) The problem also seems repeatable using firefox 115 protable Now, I tried to reinstall the portable version from scratch, it keeps hitting same error from 1st run

I have also double check the firewall and antivirus to make its not blocking All other browsers works just fine

A recent set of system updates appears to have made most website videos not play in Firefox.

When I inspect the Developer Tools - > Console tab the most detail Firefox gives are an error line similar to: Media resource URL could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_METADATA_ERR (0x806e0006)

Internet searches for the error name and error hex do not appear yield any applicable troubleshooting, nor any methods of collecting additional problem data.

How can I obtain more detail on where the error is happening and how Firefox might be interacting with other packages present on my system?

Arch Linux has some older ffmpeg-compat packages, but those don't appear to match any of the web results, in that they're even older versions of ffmpeg.

yay -Ss ffmpeg-compat aur/ffmpeg-compat-55 2.3.6-4 (+24 0.00)

   Compatibility package for ffmpeg to provide versions 55 of libavcodec, libavdevice and libavformat, not anymore provided by the ffmpeg package

aur/ffmpeg-compat-54 1.2.12-4 (+87 0.00)

   Compatibility package for ffmpeg to provide versions 54 of libavcodec, libavdevice and libavformat, not anymore provided by the ffmpeg package

The behavior began with fifteen to twenty crash messages appearing. After which the browser would stop responding and be unable to reach out to the internet.

Network connectivity was confirmed as I was able to access my VPN and corporate teams.

I submitted as many crash reports as I could. Eventually the crash reporter ceased to function. The message is:

Firefox had a problem and crashed. Unfortunately, the crash reporter is unable to submit a report for this crash.

Details: expected value at line 1 column 1

Only a full reboot of the machine restored functionality but only temporarily. It returns after being put into sleep mode.

Running firefox in safe mode does not restore functionality. The behavior persists.

I am fully up to date according to firefox.

I am running a Lenovo Thinkpad Windows 11.

when I sign into Goog/setting/2 step, the page does not show "app passwords." I've turned off my ad-blocker extensions and pop-up blocker on the page. See attached.

How can I check what is being loaded on my computer with my browser Firefox when I start up Firefox. It takes too long for my homepage to load compared to other browsers. Can someone help so I can determine what is being loaded when I start up my browser Firefox? Thank you.

For months, now, whenever I try to post a comment on a Yahoo! News article, it reads: "Your comment has failed to published." This only happens in Firefox. My "Privacy & Security" settings are set to "Standard," my "History" set to "use custom settings for history" with settings "Remember browsing and download history" and "Clear history when Firefox closes." so cookies and cache get cleared then.

Sometimes this works when starting a new session. But I shouldn't have to start another session and lose all of my logins just to post a comment on a Yahoo News article.

Anyone else having this problem? Is there an easy and permanent fix? What are you settings set at?

duplicate of /questions/1448898 thread.

When attempting to install a "clean" verison (delete old, install new) I get an error message about using the firefox removal tool. Where do I get it and how do I remove the old one and install a newest version?

Hello,

I am experiencing an issue related to the Vanguard anti-cheat system used by Riot Games, specifically in relation to League of Legends. After installing the game and Vanguard, I am unable to open Firefox. When I try to launch Firefox, nothing happens. However, if I change the name of the firefox.exe file, I can start Firefox on a different profile, but it only works for a short period before becoming unresponsive. None of the options or tabs respond after that.

Could you please provide assistance on how to resolve this issue?

Thank you.

I did post this before, and Paul replied (thanks) but he didn't suggest a solution. When I add bookmarks to the Firefox Focus home screen, those icons are cut off, so the label is very difficult to read. If this is a bug then I reported it earlier to Bugzilla, but if it is not a bug then how can I fix it, please? Thank you.

I am trying to get a older version 56.0 32 bit to use autofill on a site that has been working but now blocked it. The site is NICS site to do a background check it will load and on the second page after about three min. a message pops up and states something like not allowed is there a way i can change setting to get the old version to allow this ? I also use the same setup to do a military lending act check and it has also been blocked in the past few weeks. The new version will work but i can't use autofill i don't care what version i use i just need the autofill.

I am experiencing no window to enter my credit card number in. There is the window for the expiry date and CCC code. Just not the card number. I have tried numerous websites that I would never buy anything from just to test the failure and it repeats on all the sites I have tried including government payment site.

When attempting to install a "clean" verison (delete old, install new) I get an error message about using the firefox removal tool. Where do I get it and how do I remove the old one and install a newest version?