As good as QuickTime Player is on macOS, it can be very limited for many users. However, you can download the Samsung Video Library app from the Galaxy Store. For example, Twitch.tv offers HTML5 video — but only in Safari on Mac OS X. The default video player of Mac OS is QuickTime Player, which was the most popular one for Mac users. Open Safari; Go to the Safari menu and choose Preferences. This method applies to one file format at a time. From this date on your YouTube HTML5 video player will be better than the previous player. Safari for Mac is the most similar to the Safari for iPad browser most mobile sites will be optimized for. Customize your start page Choose the background image and links you want to see when you open windows and tabs. That's why users opt-out for other software. Copyright Â© 2020 Wondershare. 2020 update: Since Flash Player is no longer supported by Adobe, it is recommended to not enable Flash Player in any web browser. Setting Safari preferences Click the Websites tab and scroll down to the Plug-ins section. For example, if you change the default video player for MOV files, you will still have to change it for AVI files manually. Then go to the right side column, which says the Output Format: Â and click the Video tab from the drop-down menu, where allows you to select your wanted video output format for your Mac. And if you’re one of those people, you’ve probably thought to yourself, "how to change default video player mac"? Click on Change All option, and the system will apply the changes to all the files present on the Mac System.