Open the Internet browser you use regularly for browsing the Web.
Navigate to your browser’s extensions or add-ons menu. For example, if using Google Chrome, click on the Chrome Menu button and select “Extensions” from the left pane. If using Firefox, click on the "Tools" ► "Add-ons" menu.
Select the option to browse, or get more extensions. A new tab will open in your browser session that allows you to search for more extensions.
Type keywords into the search field to locate extensions and add-ons that block adult sites. For example, type “parental controls” or “block adult sites.”
Browse through extensions and add-ons until you find an extension you can download that blocks adult sites. Examples of such extensions are WebFilter Pro and Website Blocker.
Select the option to download or add the extension to your Web browser. Based on the extension you download, you may need to modify certain settings to ensure adult content is blocked.
Contact the developer of the extension or add-on directly if you need further assistance with using the extension to block adult sites.