weird. i am running firefox beta v 117 on android 11, and it works m. although i have activated custom add-on collection, if that changes anything…

u can enable custom add on https://www.google.com/url?q=https://www.androidpolice.com/install-add-on-extension-mozilla-firefox-android/&sa=U&ved=2ahUKEwiLrb2h5OSBAxU9d6QEHYxuBscQFnoECAAQAw&usg=AOvVaw3QnJQWQRnvuVWYQIU9WagY

and add this https://addons.mozilla.org/en-US/android/addon/user-agent-string-switcher/ as a custom add on in case this method didn’t work https://www.whatismybrowser.com/guides/how-to-change-your-user-agent/firefox