i want following on my vb.net page

Multi Tabs should be restricted at browser.

Add a client side code using JS.

If you want to redirect users to a specific page when they open multiple tabs, you can do this on the server side. It can be done by using the following code.

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

    ' Check if the current page is the first instance

    If Session("isFirstInstance") Is Nothing Then

        ' Set a flag in the session to identify the first instance

        Session("isFirstInstance") = True

    Else

        ' If not the first instance, redirect to another page

        Response.Redirect("MultipleTabsNotAllowed.aspx")

    End If

End Sub

Inspect Console should be restricted at entire application.

It's not possible to completely prevent users from accessing the browser's developer tools or inspecting the console because these tools are integral parts of web browsers and are intended for developers to debug and analyze web pages. However, you can make it more difficult for users to access these tools or receive a notification when they open the console. Keep in mind that determined users may still find ways to bypass these measures.

Console Detection

Add the following JavaScript code to detect when the console is opened and display a message in the console:

Right Clicks should be restricted at entire application.

For disabling the right click context menu, which includes the option to open the developer tools. Add the following JavaScript code in the section of your HTML file:

Copy Paste should be restricted at entire application.

Can be done using the following JavaScript :-

Back & Forward buttons should be disabled of browser. User login in their own account. And user clicks on Back & Forward button of browser

It is not recommended, as it interferes with the standard navigation behavior and can create a poor user experience. Users expect to have control over their navigation, and disabling these buttons may lead to frustration and confusion.

But you can able to achieve this by following JS code.

Please accept the answer if you find the same is useful!