Hover a thumbnail on youtube.com and click an icon at the right: "Not interested" and "Don't recommend channel"
< 脚本 YT: not interested in one click 的反馈
Same issue.
Try 1.3.7
Thank you. And thanks for your efforts on this script, only one I use.
Try 1.3.7
It fixed the issue, thank you.
They changed something because buttons appear for a moment and disappear when you hover over video. (FireFox)