How to toggle or shrink the WhatsApp web sidebar


I want to view WhatsApp web in a narrow window next to my other windows. Therefore I want to shrink or toggle the contacts sidebar.

Best Answer

  1. Download Stylus (for Chrome or Firefox)
  2. Click Stylus icon from the toolbar, click "Manage"
  3. Click "Write new style", click "Import"
  4. Copy the text below to text box:

    @-moz-document domain("") {
      .k1feT {
        flex-basis: 80px !important;    
  5. Click "Overwrite Style"
  6. Enter a name for your style (e.g. "Whatsapp")
  7. Click "Save", refresh Whatsapp Web page.