This is because the Avast Store is unable to load and function correctly without these settings enabled.
When you make a purchase via the Avast Store, you may be notified that you need to enable JavaScript and / or cookies in your web browser. Next, you can choose what you don't need and delete.Enabling JavaScript and cookies in your web browser The program, using Avast bases, will show the rating of each extension from the list. Next you will see a list with the name of the modules connected to the browser. Of course, such a function can be undone. Knowingly dangerous and malicious modules are automatically added to the list of removable extensions. The program will make a list of all extensions and plug-ins that are installed in your browser. When running this utility, we recommend that you disable the browser you are about to clean. The program currently works with the following browsers: Google Chrome, MS Internet Explorer and Firefox. It will help you to remove unnecessary additional software that will overload your browser without any problems. The Browser Cleanup application from the Avast Software developer will help you to solve this problem. Third-party developers also like to load their additions with advertising, which makes the use of the Internet, a very unpleasant thing to do. Over time, a large number of different panels, plug-ins, extensions and stored information loaded it, resulting in your first fast, beautiful and convenient browser turns into a slow and slow program that brings not the best experience. Any Internet user who spends enough time online will sooner or later face a clogged browser.