YouTube

// find youtube.com/embed/[videohash] or youtube.com/embed/video/[videohash]
var m = /youtube\.com\/embed(?:\/video)?\/([^\/\?]+)/.exec(src);
if (m) {
    // the thumbnail url is https://img.youtube.com/vi/[videohash]/0.jpg
    imgSrc = 'https://img.youtube.com/vi/' + m[1] + '/0.jpg';
}

Dailymotion

//find dailymotion.com/embed/video/[videohash]
var m=/dailymotion\.com\/embed\/video\/([^\/\?]+)/.exec(src);
if (m) {
    // the thumbnail url is at the same URL with `thumbnail` replacing `embed`
    imgSrc=src.replace('embed','thumbnail');
}

Vimeo

// find vimeo.com/video/[videohash]
m=/vimeo\.com\/video\/([^\/\?]+)/.exec(src);
if (m) {
    // set the value to the videohash initially
    imgSrc=m[1];
    $.ajax({
        //call the API video/[videohash].json
        url:'https://vimeo.com/api/v2/video/'+m[1]+'.json',
        method:'GET',
        success: function(data) {
            if (data&&data.length) {
                // and with the data replace the initial value with the thumbnail_medium value
                replaceUrl(data[0].thumbnail_medium,m[1]);
            }
        }
    });
}

TED

// find ted.com/talks/[video title].html
m=/ted\.com\/talks\/(.*)\.html/.exec(src);
if (m) {
    // associate the video title with the image element
    imgSrc=m[1];
    $.ajax({
        // call the oembed.json?url=frame_url
        url:'https://www.ted.com/services/v1/oembed.json?url='+encodeURIComponent(src),
        method:'GET',
        success: function(data) {
            // set the value of the image element asynchronously
            replaceUrl(removeSchemeForHttpsEnabledSites(data.thumbnail_url),m[1]);
        }
    });
    return false;
}

video tags

// if the element is a video with a poster value
if ($(this).is('video[poster]')) {
    // use it
    imgSrc=$(this).attr('poster');
}

@ECHO OFF 
SET counter=1
:loop
IF "%1"=="" EXIT
ECHO %counter% %1
SET /A counter=counter+1
SHIFT
GOTO loop

1 -p
2 -z
3 "E:\temp.zip"
4 -v
5 "f:\"
6 -r
7 -o
8 -s
9 –c

static void Main(string[] args)
{
    for (var i=0; i<args.Length; i++)
    {
        Console.WriteLine(i + "  " + args[i]);
    }
}

0  -p
1  -z
2  E:\temp.zip
3  -v
4  f:" -r -o -s -c

• The PGN Viewer that I use for chess games is only found on an HTTP site, therefore Google Chrome blocks loading those scripts when in HTTPS. I had to copy stuff in Google Drive and change the PGN Viewer scripts to use alternate URLs when under HTTPS and host files from Google Drive. I hope it will not reach some hosting limit and randomly fail.
• Many thumbnails loaded for the related posts list and the blog main page are also loaded via HTTP, causing mostly annoying errors in the console. I tried to fix it programatically, but it relies on knowing which sites support HTTPS and which don't.
• Videos, pictures and resources inside the blog posts themselves! I can't possibly change all the posts on my blog. There are over 1300 separate posts. While I don't have any posts that load remote scripts through HTTPS, it is still damn scary because I can't manually check everything. It would take me forever!
• Caching. It is a myth that HTTPS requests cannot be cached, but it does depend on the server headers. If the HTTPS servers that I am blindly connecting to are misconfigured, people are going to perceive it as slowing down. Also, there is an interesting post that explains why loading scripts from third parties is breaking HTTPS security.

1. Open the sites that you want to get the links from.
2. Open new tabs for the articles you want to read or YouTube videos you want to watch,etc.
3. Bookmark all tabs into a folder.
4. Close all the tabs.
5. Navigate to the bookmark folder and open the first link.
6. Read the link, then press the Bookmark Navigator button and then the right arrow. (now added support for context menu and keyboard shortcuts)
7. If you went too far by mistake, press the left arrow to go back.

1. Create the folder

{
    "manifest_version" : 2,

    "name" : "Siderite's Bookmark Explorer",
    "description" : "Gives you a nice Next button to go to the next bookmark in the folder",
    "version" : "1.0.2",

    "permissions" : [
        "tabs",
        "activeTab",
        "bookmarks",
        "contextMenus"
    ],
    "browser_action" : {
        "default_icon" : "icon.png",
        "default_popup" : "popup.html"
    },
    "background" : {
        "scripts" : ["background.js"],
        "persistent" : false
    },
    "commands" : {
        "prevBookmark" : {
            "suggested_key" : {
                "default" : "Ctrl+Shift+K"
            },
            "description" : "Navigate to previous bookmark in the folder"
        },
        "nextBookmark" : {
            "suggested_key" : {
                "default" : "Ctrl+Shift+L"
            },
            "description" : "Navigate to next bookmark in the folder"
        }
    }
}

2. Test the extension

3. Publish your extension

Adding functionality to popup elements

Getting the currently active tab

chrome.tabs.query({
    'active' : true,
    'lastFocusedWindow' : true
}, function (tabs) {
    var tab = tabs[0];
    if (!tab) return;
    // do something with tab
});

Changing the URL of a tab

chrome.tabs.update(tab.id, {
  url : url
});

Changing the icon in the Chrome extensions bar

if (chrome.browserAction) chrome.browserAction.setIcon({
    path : {
        '19' : 'anotherIcon.png'
    },
    tabId : tab.id
});

Get bookmarks

chrome.bookmarks.getTree(function (tree) {
  //do something with bookmarks
});

Hooking to Chrome events

chrome.tabs.onUpdated.addListener(refresh);
chrome.tabs.onCreated.addListener(refresh);
chrome.tabs.onActivated.addListener(refresh);
chrome.tabs.onActiveChanged.addListener(refresh);
chrome.contextMenus.onClicked.addListener(function (info, tab) {
    navigate(info.menuItemId, tab);
});
chrome.commands.onCommand.addListener(function (command) {
    navigate(command, null);
});

Creating, detecting and removing menu items

chrome.contextMenus.create({
  "id" : "menuItemId",
  "title" : "Menu item description",
  "contexts" : ["page"] //where the menuItem will be available
});

Commands

namespace Constructs
{
    public static class Do
    {
        public static Switch<T> Switch<T>(T value)
        {
            return Constructs.Switch<T>.From(value);
        }
    }

    public class Switch<T>
    {
        private bool _isDone;
        private T _value;
        private Type _valueType;

        private Switch(T value)
        {
            this._value = value;
        }

        public static Switch<T> From(T value)
        {
            return new Switch<T>(value);
        }

        public Switch<T> Case(Func<T> valueFunc, Action<T> action, bool fallThrough = false)
        {
            if (_isDone) return this;
            return Case(valueFunc(), action, fallThrough);
        }

        public Switch<T> Case(T value, Action<T> action, bool fallThrough = false)
        {
            if (_isDone) return this;
            return If(v => object.Equals(value, v), action, fallThrough);
        }

        public void Default(Action<T> action)
        {
            if (_isDone) return;
            action(_value);
        }

        public Switch<T> If(Func<T, bool> boolFunc, Action<T> action, bool fallThrough = false)
        {
            if (_isDone) return this;

            if (boolFunc(_value))
            {
                action(_value);
                _isDone = !fallThrough;
            }

            return this;
        }

        private Type getValueType()
        {
            if (_valueType != null) return _valueType;
            if (object.Equals(_value, null)) return null;
            _valueType = _value.GetType();
            return _valueType;
        }

        public Switch<T> OfStrictType<TType>(Action<T> action, bool fallThrough = false)
        {
            if (_isDone) return this;
            if (getValueType() == typeof(TType))
            {
                action(_value);
                _isDone = !fallThrough;
            }
            return this;
        }

        public Switch<T> OfType<TType>(Action<T> action, bool fallThrough = false)
        {
            if (_isDone) return this;
            if (getValueType() == null) return this;
            if (typeof(TType).IsAssignableFrom(getValueType()))
            {
                action(_value);
                _isDone = !fallThrough;
            }
            return this;
        }
    }
}

for (var i = 0; i < 25; i++)
{
    Do.Switch(i)
        .Case(10, v => Console.WriteLine("i is ten"), true)
        .Case(() => DateTime.Now.Minute / 2, v => 
            Console.WriteLine($"i is the same with half of the minute of the time ({v})"), true)
        .If(v => v % 7 == 0, v => Console.WriteLine($"{v} divisible by 7"))
        .Default(v => Console.WriteLine($"{v}"));
}

var f = new Action<object>(x =>
    Do.Switch(x)
        .OfType<string>(v => Console.WriteLine($"{v} is a string"))
        .OfType<DateTime>(v => Console.WriteLine($"{v} is a DateTime"))
        .OfType<int>(v => Console.WriteLine($"{v} is an integer"))
        .OfType<object>(v => Console.WriteLine($"{v} is an object"))
);
f(DateTime.Now);
f("Hello, world!");
f(13);
f(0.45);

for (var i = 0; i < 100; i++)
{
    Do.Switch(i)
        .If(v => v % 15 == 0, v => Console.WriteLine($"FizzBuzz"))
        .If(v => v % 3 == 0, v => Console.WriteLine($"Fizz"))
        .If(v => v % 5 == 0, v => Console.WriteLine($"Buzz"))
        .Default(v => Console.WriteLine($"{v}"));
}

// create an active pattern

let (|Int|_|) str = 
    match System.Int32.TryParse(str) with
    | (true, int) -> Some(int)
    | _ -> None

// create an active pattern

let (|Bool|_|) str = 
    match System.Boolean.TryParse(str) with
    | (true, bool) -> Some(bool)
    | _ -> None

// create a function to call the patterns

let testParse str = 
    match str with
    | Int i -> printfn "The value is an int '%i'" i
    | Bool b -> printfn "The value is a bool '%b'" b
    | _ -> printfn "The value '%s' is something else" str

// test

testParse "12"
testParse "true"
testParse "abc"

public class Option<T>
{
    private static Option<T> _empty;

    public Option(T value)
    {
        this.HoldsValue = true;
        this.Value = value;
    }

    public static Func<TInput, Option<T>> From<TInput>(Func<TInput, Option<T>> f)
    {
        return f;
    }

    private Option()
    {
        this.HoldsValue = false;
    }

    public static Option<T> Empty
    {
        get
        {
            if (_empty == null) _empty = new Option<T>();
            return _empty;
        }
    }

    public override bool Equals(object obj)
    {
        var o = obj as Option<T>;
        if (o == null) return false;
        return o.HoldsValue == this.HoldsValue && object.Equals(o.Value, this.Value);
    }

    public override int GetHashCode()
    {
        unchecked // Overflow is fine, just wrap
        {
            int hash = 57;
            hash = hash * 31 + HoldsValue.GetHashCode();
            if (!object.Equals(Value, default(T)))
            {
                hash = hash * 31 + Value.GetHashCode();
            }
            return hash;
        }
    }

    public override string ToString()
    {
        return HoldsValue ? "Option<" + typeof(T).Name + ">.Empty" : "[" + Value.ToString() + "]";
    }

    public bool HoldsValue { get; private set; }
    public T Value { get; private set; }
}

var apInt = new Func<string, Option<int>>(s =>
{
    int i;
    if (System.Int32.TryParse(s, out i)) return new Option<int>(i);
    return Option<int>.Empty;
});
var apBool = new Func<string, Option<bool>>(s =>
{
    bool b;
    if (System.Boolean.TryParse(s, out b)) return new Option<bool>(b);
    return Option<bool>.Empty;
});

var testParse = new Action<string>(s =>
    {
        var oi = apInt(s);
        if (oi.HoldsValue)
        {
            Console.WriteLine($"The value is an int '{oi.Value}'");
            return;
        }
        var ob = apBool(s);
        if (ob.HoldsValue)
        {
            Console.WriteLine($"The value is an bool '{ob.Value}'");
            return;
        }
        Console.WriteLine($"The value '{s}' is something else");
    });

testParse("12");
testParse("true");
testParse("abc");

var apInt = Option<int>.From<string>(s =>
{
    int i;
    return System.Int32.TryParse(s, out i) 
        ? new Option<int>(i) 
        : Option<int>.Empty;
});

var apBool = Option<bool>.From<string>(s =>
{
    bool b;
    return System.Boolean.TryParse(s, out b)
        ? new Option<bool>(b)
        : Option<bool>.Empty;
});

var testParse = new Action<string>(s =>
{
    FluidFunc
        .Match(s)
        .With(apInt, r => Console.WriteLine($"The value is an int '{r}'"))
        .With(apBool, r => Console.WriteLine($"The value is an bool '{r}'"))
        .Else(v => Console.WriteLine($"The value '{v}' is something else"));
});

testParse("12");
testParse("true");
testParse("abc");

var apInt = FluidFunc.From<string,int>(s =>
{
    int i;
    return System.Int32.TryParse(s, out i)
        ? new Tuple<bool, int>(true, i)
        : new Tuple<bool, int>(false, 0);
});

var apBool = FluidFunc.From<string,bool>(s =>
{
    bool b;
    return System.Boolean.TryParse(s, out b)
        ? new Tuple<bool, bool>(true, b)
        : new Tuple<bool, bool>(false, false);
});

var testParse = new Action<string>(s =>
{
    FluidFunc
        .Match(s)
        .With(apInt, r => Console.WriteLine($"The value is an int '{r}'"))
        .With(apBool, r => Console.WriteLine($"The value is an bool '{r}'"))
        .Else(v => Console.WriteLine($"The value '{v}' is something else"));
});

testParse("12");
testParse("true");
testParse("abc");

public static class FluidFunc
{
    public static FluidFunc<TInput> Match<TInput>(TInput value)
    {
        return FluidFunc<TInput>.With(value);
    }

    public static Func<TInput, Tuple<bool, TResult>> From<TInput, TResult>(Func<TInput, Tuple<bool, TResult>> func)
    {
        return func;
    }
}

public class FluidFunc<TInput>
{
    private TInput _value;
    private static FluidFunc<TInput> _noOp;
    private bool _isNoop;

    public static FluidFunc<TInput> NoOp
    {
        get
        {
            if (_noOp == null) _noOp = new FluidFunc<TInput>();
            return _noOp;
        }
    }

    private FluidFunc()
    {
        this._isNoop = true;
    }

    private FluidFunc(TInput value)
    {
        this._value = value;
    }

    public static FluidFunc<TInput> With(TInput value)
    {
        return new FluidFunc<TInput>(value);
    }

    public FluidFunc<TInput> With<TNew>(Func<TInput, Option<TNew>> func, Action<TNew> action)
    {
        if (this._isNoop)
        {
            return this;
        }
        var result = func(_value);
        if (result.HoldsValue)
        {
            action(result.Value);
            return FluidFunc<TInput>.NoOp;
        }
        return new FluidFunc<TInput>(_value);
    }

    public FluidFunc<TInput> With<TNew>(Func<TInput, Tuple<bool,TNew>> func, Action<TNew> action)
    {
        if (this._isNoop)
        {
            return this;
        }
        var result = func(_value);
        if (result.Item1)
        {
            action(result.Item2);
            return FluidFunc<TInput>.NoOp;
        }
        return new FluidFunc<TInput>(_value);
    }

    public void Else(Action<TInput> action)
    {
        if (this._isNoop) return;

        action(_value);
    }

}