Playing YouTube Videos in HTML5 Format

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Ngày cập nhật gần nhất: 15/4/2026

The main advantage of HTML5 is that it allows users to watch online video clips without the need to install additional Flash for their browsers.

Have you ever played videos on YouTube in HTML5 format? To do this, you only need to install once, and then when you open online video clips, the program will automatically run in stable HTML5 format without errors. Follow the article below to learn how.

Playing YouTube Videos in HTML5 Format

Step 1: Open the FireFox browser, then select the “Add-Ons” section.

Step 2: In the search box, enter the keyword: “YouTube ALL HTML5”.

Then choose the latest Add-Ons and click “Install”.

Step 3: Restart the browser, then open the YouTube page, you will see the HTML5 line on the screen. (The image below) means you have successfully installed it.

So from now on, you can play any YouTube video or clip in HTML5 format, even if Flash encounters errors in your browser. You can also refer to more YouTube tricks available on Mytour for more effective usage.

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