Export Synced Tabs List to "bookmarks.html" file (Browser Console script)

syncedTabsToBookmarksHTML.js

// ctrl+shft+j
// Run code in Browser Console after enabling chrome debugging --
// about:config => devtools.chrome.enabled => true
// https://developer.mozilla.org/docs/Tools/Browser_Console
try {
	var tabPromise = SyncedTabs._internal.getTabClients();
	tabPromise.then((arrDevices) => {
		if (arrDevices && arrDevices.length > 0){
			// Generate a string with the format of a bookmark export file
			var d, e, out = '<!DOCTYPE NETSCAPE-Bookmark-file-1>\n<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">\n<TITLE>Bookmarks</TITLE>\n<H1>Bookmarks Menu</H1>\n<DL><p>\n';
			const escapeHtmlEntities = function(aText){return (aText || '').replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;').replace(/'/g, '&#39;')};
			for (var j=0; j<arrDevices.length; j++){
				// Create a folder for each device
				d = new Date(arrDevices[j].lastModified);
				e = Math.floor(d.getTime()/1000);
				out += '<DT><H3 ADD_DATE="' + e + '" LAST_MODIFIED="' + e + '">Synced Tabs from ' + escapeHtmlEntities(arrDevices[j].name) + ' as of ' + d.toString() + '</H3>\n<DL><p>\n';
				// Sort tabs by most recently used
				var arrTabs = arrDevices[j].tabs;
				arrTabs.sort(function(a, b){return b.lastUsed - a.lastUsed;});
				for (var i=0; i<arrTabs.length; i++){
					// Create a bookmark (link) for each tab
					d = new Date(arrTabs[i].lastUsed * 1000);
					e = Math.floor(d.getTime()/1000);
					out += '  <DT><A HREF="' + arrTabs[i].url + '" ADD_DATE="' + e + '" LAST_MODIFIED="' + e + '">' + escapeHtmlEntities(arrTabs[i].title) + '</A>\n';
					// Show last access date/time in a note (comment out or delete the next line if you don't want that)
					out += '    <DD>Last acccessed: ' + d.toString() + '\n'
				}
				out += '</DL><p>\n';
			}
			out += '</DL><p>\n</DL>';
			// Set up Save As dialog with proposed file name
			var fp = Components.classes["@mozilla.org/filepicker;1"].createInstance(Components.interfaces.nsIFilePicker);
			fp.init(window, 'Open File', Components.interfaces.nsIFilePicker.modeSave);
			fp.appendFilter('HTML Files', '*.html');
			d = new Date();
			d.setMinutes(d.getMinutes() - d.getTimezoneOffset());
			var dt = d.toISOString().split('.')[0].replace(/-/g, '').replace(/:/g, '').replace(/T/, '_');
			fp.defaultString = 'bookmarks-from-synced-tabs_' + dt + '.html';
			// Call Save As dialog and (unless user cancels) write the file
			fp.open((aResult) => {
				if (aResult == Components.interfaces.nsIFilePicker.returnOK ||
					aResult == Components.interfaces.nsIFilePicker.returnReplace) {
					try {
						IOUtils.writeUTF8(fp.file.path, out);
						alert('Look for ' + fp.file.path);
					} catch (err) {
						alert(err);
					}
				} else {
					alert('Okay, not saving');
				}
			});
		} else {
			console.log('NO SYNCED TABS RETRIEVED');
		}
	}).catch((err) => {
		console.log('Problem reading or outputting synced tabs: '+err);
	});
} catch (err) {
    console.log('Problem reading or outputting synced tabs: '+err);
}