Now, we will see the summarized path of this method too. On the other hand, you can start the Avast browser when you need it after disabling the auto startup feature. This is also one of the easier methods for you to disable this feature. Finally, click on the “Avast secure browser option” and press disable.Then click on the startup tab to display all the startup apps.Next, you will see tabs like Performance, App History, Startup, Users, and many more.Here is the process you need to follow for this. On the other hand, this also one of the safest methods to disable this annoying popup feature. You can use this solution for the “how to stop the avast browser from opening on startup” issue. Launch Avast browser automatically when your system starts