1. Click on the computer to open the 360 secure browser, then open the extended management icon on the browser page, and then click the "Add" option in the drop-down list.

2. After entering the application market page, enter the words "video speed" in the search box in the upper right corner, and then click Enter.

3. On the search results page, you can see the video speed control plug-in. Click the "Install" option to open the plug-in.

4. After clicking the "Install" option, click the "Add" option in the pop-up box of the browser.

5. If the video speed control plug-in of 360 security browser can't accelerate the websites such as iQiyi, we can right-click the plug-in and select Delete to download the double speed plug-in in this link.

6. After downloading the plug-in, return to the application market page, then drag the plug-in directly to the page, and then click the "Add" option in the pop-up box.

7. After installing the new video multiplier plug-in, open the video in any website, then open the icon of the plug-in and select the video multiplier you need from the drop-down list.