Opera 11.00 for Windows changelog

Release notes

Release date: December 16, 2010

Opera 11.00 is a recommended upgrade offering new and improved features, plus security and stability enhancements. For your reference, please see the previous Opera 11.00 beta for Windows changelog on the Opera changelogs website.

New features and improvements

Address field

An improved address field makes it easier to stay safe on the Web, and it now hides the complexity of long web addresses. It also provides more security information to help you stay safe when browsing; just click the badge for the website to see security information about the site you are visiting.


An improvement to auto-update now makes sure you have the latest extensions and Opera Unite applications.

Bookmarks bar

The Opera Bookmarks bar is located directly below the Address bar, and replaces the old Personal bar.

Enabling the new Opera Bookmarks bar
  1. Click the O menu button.
  2. Select "Toolbars".
  3. Click the check box next to "Bookmarks bar".
If you want the Bookmarks bar to show in the former location of the Personal bar
  1. Open the Appearance dialog (Shift + F12) > "Toolbars".
  2. Click "Show hidden toolbars while customizing".
  3. Above the Address bar a Bookmarks bar appears. Click it once to mark it (a yellow outline will show around the bar).
  4. Click "Placement" and select "Top" inside the Appearance dialog.
  5. Mark the new Bookmarks bar located below the Address Bar, and choose "Placement Off".
  6. Click OK.
  7. The Bookmarks bar is now shown in the former location of the Personal bar.


Opera extensions offer a way for you to easily add new functionality to your Opera browsing experience. Developers can easily create extensions using open standards (HTML5, CSS, JavaScript) and supported APIs. Opera extensions will be based on the W3C Widget specifications and this is being considered for an Open Standard effort.

Some changes to requirements that will affect currently available extensions include:

This means that some extension authors will have to update their extensions.

Opera installer for Microsoft Windows platforms

Opera 11.00 has a new installer written in-house, which is much faster than the previously used MSI installer.

Mail panel

The Opera Mail panel has been improved with the following changes.

Plug-in loading

You can now set plug-ins to load only when you click on them, to significantly speed up browsing.

Presto 2.7 rendering engine

CSS3 Image Values and Replaced Content Module improvements

Support has been added for the object-fit and object-position properties.

CSS3 Text Module improvements

Renamed the -o-text-overflow property to text-overflow, and added support for ellipsis on multi-line blocks.

Encoding improvements

Big5-HKSCS support has been updated for the HKSCS-2008 encoding standard.

HTML5 improvements

Support has been added for the following:

WebSockets support

Opera offers support for WebSockets which provide a way to communicate between script in a web page and the server in full-duplex mode with low latency. Opera supports version -00 of the WebSocket protocol (-76). WebSockets sets up one TCP connection and confirms that the server can speak WebSocket by doing a special handshake, after which the server and the client can send text messages over the connection at will, resulting in faster communication.

WebSockets support in Opera is disabled by default. Warning: This is due to flaws which can be exploited in the current WebSockets protocol. However, if you want to enable WebSockets in Opera:

  1. Type opera:config in the address bar and press Enter.
  2. In the Preferences Editor, expand the "User Prefs" topic and see "Enable WebSockets".
  3. Click the "Enable WebSockets" check box.

Search predictions

Search predictions from Google integrate into Opera's search field, and predict queries as you type, making searching quicker and easier. When using the search field or searching from the address field with the 'g' search keyword, Google search predictions will appear.

Speed improvements

Numerous advancements to various engines have been made to improve Opera's speed and benchmark test performance.


Tab stacking

Opera invented tab browsing in the 1990s, and Tab stacking enhances tab organization in the user interface. Dragging one tab over another allows you to create groups of tabs. Now you can keep dozens of webpages open, organized, and under control. See our Tab stacking demonstration video.

Pinned tabs

The "Locked Tab" feature is improved and renamed to Pin Tab. Pinned tabs take up minimal space and are automatically moved to the left of other tabs to make them easy to find.

User JavaScript

Support has been added for the W3C Web Storage API window.opera.scriptStorage property for user scripts alone.

Visual mouse gestures

Mouse gestures is another genuine Opera innovation that was first introduced in Opera 5.10 in April 2001. Visual Mouse gestures help you learn how to control Opera with mouse movements. A new interface guides you through the available gestures, making it easier to learn and use them.

  1. To see the new mouse gesture interface, hold (long press) the right mouse button down in any webpage.
  2. Then, move the pointer in any direction and the interface changes to reflect the actions that can be performed with subsequent movements.
  3. When you complete an action, a notification briefly shows what action you performed.
  4. Once you learn your favorite mouse gestures and perform them quickly, the interface will not display.

Changes since Opera 11.00 beta

User interface


Display and scripting


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Opera Help

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