Is Improved NAVER video plugin safe?

Adds playback controls and quality options for NAVER Cafe and Blog videos.

This extension adds extra features to NAVER Cafe and Blog video players, including automatically using the highest available resolution, showing the current quality and playback speed, and autoplaying the first video. It also supports stopping the previous video when another starts, keyboard shortcuts for fullscreen, mute, and speed changes, UI adjustments, fixed or expanded volume settings, and click-anywhere playback start.