You can close tabs in a browser that are associated with a specific domain like "foo.com" using the following JavaScript code
function close_tabs(domain_name) { // Get all open windows in the browser const windows = window.top; // Loop through each window for (let i = 0; i < windows.length; i++) { // Get all the tabs in the current window const tabs = windows[i].document.getElementsByTagName('a'); // Loop through each tab for (let j = 0; j < tabs.length; j++) { // Check if the tab's URL contains domain_name if (tabs[j].href.includes(domain_name)) { // Close the tab windows[i].close(); } } } } close_tabs("foo.com");