jscher2000

/* Add Handler via Firefox Browser Console -- mailto: Yahoo! Mail 

   NOTE: BEFORE YOU CAN RUN THIS SCRIPT, IF YOU HAVEN'T ALREADY:
   * Type or paste about:config into the address bar and press Enter
   * Click the button promising to be careful
   * In the search box type devt and pause while Firefox filters the list
   * If devtools.chrome.enabled is false, double-click it to toggle to true

Paste this entire script into the command line at the bottom of the Browser Console (Windows: Ctrl+Shift+j)
Then press Enter to run the script. A dialog should pop indicating whether the save was successful.

jscher2000

/* Export Current Tab Titles/URLs to CSV - Script for the Browser Console
	
	   NOTE: BEFORE RUNNING THIS SCRIPT, CHECK THIS SETTING:
	   Type or paste about:config into the address bar and press Enter
	   Click the button promising to be careful
	   In the search box type devt and pause while Firefox filters the list
	   If devtools.chrome.enabled is false, double-click it to toggle to true
	
	Paste this entire script into the command line at the bottom of the Browser Console (Windows: Ctrl+Shift+j)
	Then press Enter to run the script. A save dialog should promptly open.

jscher2000

// 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;')};

jscher2000

// Run code in Browser Console after enabling chrome debugging --
// about:config => devtools.chrome.enabled => true
// ** first device only **
try {
	var tabPromise = SyncedTabs._internal.getTabClients();
	tabPromise.then((arrTabs) => {
		if (arrTabs && arrTabs.length > 0){
			var csv = 'Tabs from: ' + arrTabs[0].name + '\n\n"Title","URL"';
			for (var i=0; i<arrTabs[0].tabs.length; i++){
				csv += '\n';

jscher2000

/* Script for the Browser Console
	
	   NOTE: BEFORE RUNNING THIS SCRIPT, CHECK THIS SETTING:
	   Type or paste about:config into the address bar and press Enter
	   Click the button promising to be careful
	   In the search box paste devtools.chrome.enabled
	   If the preference is false, double-click it to toggle to true
	
	Paste this entire script into the command line at the bottom of the Browser Console (Windows: Ctrl+Shift+j)
	Then press Enter to run the script.

jscher2000

/* Session Backup Script for the Browser Console

   NOTE: BEFORE RUNNING THIS SCRIPT, CHECK THIS SETTING:
   Type or paste about:config into the address bar and press Enter
   Click the button promising to be careful
   In the search box type devt and pause while Firefox filters the list
   If devtools.chrome.enabled is false, double-click it to toggle to true

Paste this entire script into the command line at the bottom of the Browser Console (Windows: Ctrl+Shift+j)
Then press Enter to run the script. A save dialog should promptly open.

jscher2000

    /*
       Code to paste and run in the Browser Console
       Requires devtools.chrome.enabled => true in about:config
       Tested in Firefox 68.0.1 on Windows
    */

    // Create references to APIs we'll use
    var ss = Cc["@mozilla.org/content/style-sheet-service;1"].getService(Ci.nsIStyleSheetService);
    var io = Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService);
    var ds = Cc["@mozilla.org/file/directory_service;1"].getService(Ci.nsIProperties);

jscher2000

Option Explicit
' Creates a Backup Script named Fx-backup-recoveryJS(profilefoldername).vbs in your (My) Documents folder to copy 
' recovery.jsonlz4 or sessionstore.jsonlz4 from your default profile to an FxSessions folder in your (My) Documents folder
' v0.3 - 25 May 2019 - jscher2000 - MPL 2.0 license
Dim oShell, sAppData, sDocsFolder
' Get APPDATA path and My Documents path
Set oShell = CreateObject("Wscript.Shell")
sAppData = oShell.expandEnvironmentStrings("%APPDATA%") + "\Mozilla\Firefox"
sDocsFolder = oShell.SpecialFolders.Item("MyDocuments")
' Check for Firefox's installs.ini file

jscher2000

// Override @page{margin} rule if found
var docSS = document.styleSheets, ss, ess; 
for (var i=0; i<docSS.length; i++){
	if (!docSS[i].disabled){
		// check content of style sheet for @page (type 6 style sheet)
		// https://developer.mozilla.org/en-US/docs/Web/API/CSSRule#Type_constants
		ss = docSS[i];
		for (var j=0; j<ss.cssRules.length; j++){
			if (ss.cssRules[j].type == 6){ // Page sheet
				if (ss.cssRules[j].cssText.indexOf('margin') > -1){

jscher2000

// For Firefox's Web Console, creates the functions showAsPrint() and undoShowAsPrint()
// to roughly emulate print media and revert
function showAsPrint(){
	var docSS = document.styleSheets, ss, oldMedia, newMedia, rules;
	var p2s = function(media){
		if (media.indexOf('all') > -1) return media; //no need to change
		if (media == 'print') return 'all, wasprint'; //show on screen, too
		if (media.indexOf('print') > -1 && media.indexOf('screen') > -1) return media; //no need to change
		if (media == 'screen') return 'wasscreen'; //hide these rules
		if (media.indexOf('screen') > -1) return media.replace('screen', 'wasscreen'); //hide these rules