Youtube not working on a few videos

[Arcanus6669]

Your question

Most of the time it works perfectly but so far I have come across 2 videos that do not trigger any video available for download.
https://www.youtube.com/watch?v=Mw8GbmFe14E
https://www.youtube.com/watch?v=QdO_IhDaFSo

Addon & CoApp version and details

version: 9.1.0.42
target: mozilla
channel: stable
lang: en-US
coapp: {"found":true,"path":"/Applications/net.downloadhelper.coapp.app/Contents/MacOS/vdhcoapp","version":"2.0.19","new_version":false}
license: {"accepted":true,"email":"","key":"d82dc315f25c473d"}
platform: x86-64 mac
UA: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0
{
"valid_license_message_has_been_displayed": true,
"never_show_no_incognito_msg_again": true,
"view_options": {
"all_tabs": false,
"low_quality": false,
"sort_by_status": true,
"sort_reverse": false,
"show_button_clean": true,
"show_button_clean_all": false,
"show_button_convert_local": false,
"hide_downloaded": false
},
"yt_warning": false,
"open_count_store": 4,
"successfull_dl": 21,
"never_show_successfull_dl_message": true,
"download_history": {
"__serializer_tag": "map",
"__serializer_value": []
}
}

[GrampaWildWilly]

I do not work for VDH. I'm just another user.

You will find a number of previous discussions in here to show that you are reporting a duplicate problem. It is well known that VDH does not work on age restricted YouTube content. It also doesn't work when someone is logged in on YouTube with a paid account. We are all eagerly awaiting a solution from @paulrouget Paul.