一键下载全民K歌用户的所有歌曲（MP4/M4A）

Adds QR code recognition option to right-click menu when hovering over images

Removes the promotion element and the "We had a server error..." banner

Remove promoted tweets and ads from Twitter feed

Use MutationObserver to hide promotional sections and live broadcasts on Bilibili video pages, as well as homepage advertisements, to enhance browsing experience

Hide Baidu Wenku's hover window named "Document Assistant".