By Opera Software

From Opera 15 onward, Opera 11 & 12’s extension format is no longer supported, and instead, we’ve switched to Chromium’s extension model. Check out our new documentation for developing extensions for Opera 15 and higher and start building your own extensions.


The update() method provides a way to update the properties of a browser tab.


  • properties: The new properties to use for updating the tab.


void update (BrowserTabProperties properties)


The following example creates a button on the browser toolbar. When the button is clicked, the current tab is detected and is then locked (pinned).

// The background process (e.g. index.html)

// Specify the properties of the button before creating it.
var UIItemProperties = {
  disabled: false,
  title: "Example extension",
  icon: "images/icon_18.png",
  onclick: function() {
    // Detect the currently selected tab
    var thisTab = opera.extension.tabs.getSelected();

    // Make the current tab locked (pinned)
    thisTab.update({locked: true});

// Create the button and add it to the toolbar.
var button = opera.contexts.toolbar.createItem( UIItemProperties );

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