Pic gone on youtube only sound

''<p>OaksLSF [[#question-1362474|said]]</p>'' <blockquote>. . . and can't fully read screen; something about icons. </blockquote> Hello, In order to better assist you with your issue please provide us with a screenshot. If you need help to create a screenshot, please see [[How do I create a screenshot of my problem?]] Once you've done this, attach the saved screenshot file to your forum post by clicking the '''Browse...''' button below the ''Post your reply'' box. This will help us to visualize the problem. Thank you!

Did this problem with the video just start? Can you tell when? If you have Windows 10 N or KN then you may not have the Media Feature Pack installed. https://support.mozilla.org/en-US/kb/fix-video-audio-problems-firefox-windows https://support.mozilla.org/en-US/kb/fix-problems-images-not-show http://kb.mozillazine.org/Images_or_animations_do_not_load https://support.mozilla.org/en-US/kb/fix-video-audio-problems-firefox-windows https://support.mozilla.org/en-US/kb/fix-common-audio-and-video-issues https://support.mozilla.org/en-US/kb/html5-audio-and-video-firefox https://support.mozilla.org/en-US/kb/troubleshoot-issues-with-plugins-fix-problems https://support.mozilla.org/en-US/kb/warning-unresponsive-plugin

Screenshot

Just today I have vision problems and colour blind

thank you for your help Problem solved

Well done both of you.