When opening the following bookmark https://www.youtube.com/@msolrecords I end up with https://www.youtube.com/msolrecords and page not found. If I type the @ it works. I disabled enhanced tracking protection same result add youtube.com to privacy.query_stripping.strip_list same result Your help would be appreciated Regards, Ousmane

Correction actually does not work when i type the @ I can get to the channel by searching for M sol records in youtube. If I copy and paste the url into another tabe it fails. Not sure if it is a youtube or firefox problem. Regards, Ousmane

It is not Firefox doing this, but YouTube that sends a 303 See other response with a location header as you can see in the Network Monitor.

• https://firefox-source-docs.mozilla.org/devtools-user/network_monitor/

Same issue occurs in Chrome.