For bugs in Firefox Desktop, the Mozilla Foundation's web browser. For Firefox user interface issues in menus, developer tools, bookmarks, location bar, and preferences. Many Firefox bugs will either be filed here or in the Core product. (more info)
For issues relating to the site identity block in the location bar, site information panel (also known as "Control Center"), and prompts from sites that require additional permissions (such as geolocation, camera, and microphone).