Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Avatar for Username

Zoeken in Support

Vermijd ondersteuningsscams. We zullen u nooit vragen een telefoonnummer te bellen, er een sms naar te sturen of persoonlijke gegevens te delen. Meld verdachte activiteit met de optie ‘Misbruik melden’.

Learn More

Deze conversatie is gearchiveerd. Stel een nieuwe vraag als u hulp nodig hebt.

Firefox will not open Youtube videos

  • 1 antwoord
  • 1 heeft dit probleem
  • 5 weergaven
  • Laatste antwoord van Jeff Grossman

philip25
philip25
more options

This is a new Dell laptop with latest updates of Window 10 and Firefox 75.0 (64-bit) . Last laptop did not have this problem.

When I try to open a Youtube video, this is the error message. "The address wasn't understood. Firefox doesn't know how to open this address, because one of the following protocols (rtsp) isn't associated with any program or is not allowed in this context. You might need to install other software to open this address."

How can I resolve this, please?

This is a new Dell laptop with latest updates of Window 10 and Firefox 75.0 (64-bit) . Last laptop did not have this problem. When I try to open a Youtube video, this is the error message. "The address wasn't understood. Firefox doesn't know how to open this address, because one of the following protocols (rtsp) isn't associated with any program or is not allowed in this context. You might need to install other software to open this address." How can I resolve this, please?

Alle antwoorden (1)

Jeff Grossman
Jeff Grossman
more options

You are opening a link using the RTSP protocol but internet browsers use HTTP. Per this person: https://support.mozilla.org/en-US/questions/1278853 ...you should list RTSP so that FF will ask you what app to open (and you can choose your favorite rtsp-enabled media player).

HTH.