Abstract: Methods and systems of reducing computer resource utilization to update rankings based on dynamically generated content are described. The method includes identifying a ranking of content experience types of a list of content experience types. Each content experience type including parameters to generate content experience documents. The method also includes updating the ranking of content experience types. The updating includes iteratively selecting content experience types from the ranking of content experience types to generate an update subset of the ranking of content experience types, generating, for a client device, a feedback request document including a plurality of content experience documents, and receiving feedback information related to the plurality of content experience documents included in the feedback request document to update the ranking of the content experience types included in the update subset.

Abstract: An extension manager can identify that a browser extension that is installed on a computing device is configured to modify the operation of a browser application. The extension manager can determine that the browser extension is a malicious browser extension based on a manner that the browser extension modifies content presented within the browser application. The extension manager can disable the browser extension in response to determining that the browser extension is a malicious browser extension and then initiate an uninstall process that uninstalls the extension manager from the computing device.