What is an effective way to extend the functionality of a web browser?

Using browser add-ons is an effective way to extend the functionality of a web browser because these add-ons, also known as extensions or plug-ins, are specifically designed to enhance the user experience by adding new features or integrating with other services. They can provide a wide range of capabilities, including ad blocking, password management, enhanced security, productivity tools, and customization options that tailor the browsing experience to individual needs.

For instance, an ad blocker can prevent intrusive ads from appearing, a password manager can streamline the login process, and a note-taking extension can help users save information while browsing. By installing these add-ons, users can improve their browsing efficiency and access additional services that the standard web browser does not provide.

Clearing the browser cache, changing the browser theme, and upgrading the operating system are all actions that can improve browser performance or alter its appearance, but they do not directly add new functionalities to the browser itself in the way that add-ons do.