Do more on the web, with a fast and secure browser!

Download Opera browser with:

  • built-in ad blocker
  • battery saver
  • free VPN
Download Opera
  • After Opera has updated to version 67.0.3575.53 videos stopped playing and giving "html5 video not found.Nothing about my system changed in any way except for Opera updating. I have tried dissabling adblock and cleaning cache and cookies it did nothing. I also tried to turn off acceleration it didn't work too.I did roll back the version to old one and it was working but now it aouto-updated again and it doesn't play videos anymore, so it is problem with an update.

  • Yes. It's a bug in Opera on Windows 7. Hopefully there will be a fix soon.

    For autoupdate, after you roll back to Opera 66, rename opera_autoupdate.exe to opera_autoupdate.off. It's in the version folder for the version you're using in Opera's installation directory. That will stop updates and will also breaking checking for updates. So, monitor https://blogs.opera.com/desktop/ for a fix and turn the updater back on and check for updates when there's a fix.

  • @burnout426 said in HTML5 Video not found:

    Yes. It's a bug in Opera on Windows 7. Hopefully there will be a fix soon.

    For autoupdate, after you roll back to Opera 66, rename opera_autoupdate.exe to opera_autoupdate.off. It's in the version folder for the version you're using in Opera's installation directory. That will stop updates and will also breaking checking for updates. So, monitor https://blogs.opera.com/desktop/ for a fix and turn the updater back on and check for updates when there's a fix.

    Yes, your right. But i think update win7 to win10 better than wait this fix

  • @wehixosu said in HTML5 Video not found:

    Yes, your right. But i think update win7 to win10 better than wait this fix

    There are a couple issues in this area that affect Win 10 too. Watch for fixes for everything in the changelogs at https://blogs.opera.com/desktop/ (probably be in Opera Developer (68) only at first, but not sure.

  • Try turning Javascript on. I found that mine was disabled after the update

  • The error HTML5 video ‘file not found’ states that the web browser which you are using doesn’t support an HTML5 or webpage doesn’t have the correct video codec. Though, you need to contact the website’s developer to install HTML5 supporting codecs to solve your issue.

    T know more: https://www.rescuedigitalmedia.com/fix-html5-video-file-not-found-error