2. First, open the browser on the computer. Take Firefox for example. After entering the page, click the three dot icons in the upper right corner. Then a window will pop up, where you can select "More Tools" and then "Browse Data Clearly".
3. Open the Firefox browser and click on the three points in the upper right corner. In the pop-up menu bar, select More Tools-Clear Browsing Data. The next setup page will pop up a dialog box, then set it to unlimited time in the dialog box, check the picture cache, and then click Clear Data.
4. Played videos or pictures often stay on the playing software. When others open the playback software, they will see the videos you have played. If the videos are not deleted from the computer, they can be played back.
5. Delete all websites starting with "http://" for online browsing, and the visited websites will remain in the address bar of IE browser. Naturally, you don't want others to know your online information, so delete it.