Member Avatar for scomx

i have a tabbed web browser so every time i close a tab the tab is closed but the process is still running for example one of my tabs there is a youtube page opened so if i close that tab the video is still runing you even can hear the sounds so how to close and kill the web browser process in the selected tab

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  • Latest Post Latest Post by scomx

Dani AI

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Good find — calling Dispose often stops the problem. was right to ask for the code. Briefly: the WinForms WebBrowser is a managed wrapper over a COM/ActiveX browser (IWebBrowser2). If event handlers or COM references remain, or if a plugin runs out‑of‑process, media can keep playing even after the tab control removes the page. A safe, repeatable cleanup routine unloads the page, detaches handlers, releases the underlying COM object, and then lets the control be collected.

Recommended cleanup steps (in this order):

  • Remove any event handlers that reference the control or its Document.
  • Navigate to a blank page to stop embedded media from continuing.
  • Release the ActiveX/COM instance from the wrapper.
  • Allow disposal and then optionally force a GC pass if you need immediate cleanup.

Useful VB snippets (new code not shown earlier in the thread):

Remove any handlers you attached:

RemoveHandler browser.DocumentCompleted, AddressOf Browser_DocumentCompleted

Release the underlying COM instance:

Dim ax As Object = browser.ActiveXInstance
If ax IsNot Nothing Then
    System.Runtime.InteropServices.Marshal.FinalReleaseComObject(ax)
End If

If you must force immediate cleanup (use sparingly):

GC.Collect()
GC.WaitForPendingFinalizers()

Notes and cautions: do not forcibly kill system or other processes from Task Manager; if audio persists it may be an out‑of‑process plugin (Flash, etc.), which requires a different approach or moving to a more modern embedding (WebView2/CefSharp) for cleaner process isolation. Also check for any remaining references to Document or DOM elements in your code — those commonly keep the browser alive.

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Member Avatar for Mr.M

A code will help so we can see how you ran it.

Member Avatar for scomx 
 Public Sub removetab()
    If TabControl1.TabPages.Count <> 1 Then
        Dim browser As webbrowser = Me.TabControl1.SelectedTab.Tag
        browser.Stop()
        TabControl1.TabPages.Remove(TabControl1.SelectedTab)
        url.Text = TabControl1.SelectedTab.Text

    End If
End Sub
Member Avatar for scomx

i found the solution but thank you any way ,this is the solution

webbrowser.Dispose()

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