What the extension does

Vinegar changes YouTube web-player behavior in Safari. Check current Mac compatibility in the App Store, install it, and enable it in Safari Settings. Test playback, full screen, and picture-in-picture separately on an ordinary video page to learn what works with your Mac and browser version.

Test the playback flow

Play a short video, switch tabs, and return to see whether playback continues. Check captions, speed, and full screen as separate actions. If one channel behaves differently, turn Vinegar off in Safari’s extension menu and compare the same video to isolate a site change from an extension issue.

Professional perspective: utility and stability

Macworld’s Stephan Wiesend describes the replacement player and picture-in-picture as useful, while also noting stability issues during testing. A useful review includes failure cases as well as features. Test the sites you actually watch after installation, then retest after updates.

Scope and limits

Do not assume support for every video format, live stream, or DRM-protected item. A site redesign can change how the extension behaves. If playback or captions fail, disable the extension to compare; reviews of iPhone or iPad do not establish Mac compatibility.

Sources