Salesforce Set Field Level Security is a Chrome extension developed by Andres Magallanes. It falls under the category of Browsers and is specifically categorized as an Add-ons & Tools. The extension is available for free.

This extension is designed to assist with the task of checking profiles' "Visible" and "Read-Only" options in the "Set Field-Level Security" page of Salesforce. It simplifies the process by allowing users to provide a list of profile names and automatically checks the selected options for each profile on every open tab of the current browser window.

It is important to note that this extension only works in Salesforce Classic. However, the developer has mentioned that Lightning support will be added if requested. With its ability to streamline the profile checking process, Salesforce Set Field Level Security is a useful tool for Salesforce users managing field-level security.