Internet Explorer 9 Will Monitor Add-On Performance

Martin Brinkmann
Jun 28, 2010
Updated • Dec 9, 2012
Internet Explorer

There has been a lot of talk about Microsoft's upcoming web browser Internet Explorer 9 lately. The third preview release, still bare-bones with no Chrome user interface, showed great promise in speed, compatibility and stability.

Internet Explorer 9 looks to be a real contender in the web browser market. The developers have revealed lots of technical information for tech savvy users and web developers but little is known about general features that will be added to Internet Explorer 9.

Recently documents of the Ecosystem Forum II conference have found their way online, and one of the documents reveals that Internet Explorer 9 will monitor add-on performance.

Internet Explorer 9 will inform the user if add-ons are slowing down the browsing experience. A notification is displayed at the top of the web page below the other Internet Explorer UI elements whenever that happens.

The notification contains a button that takes the user directly to the list of enabled add-ons. This page lists the add-ons that are enabled and their loading time. Here it is possible to disable selected or all add-ons.

The same menu provides configuration options to change when this warning appears in Internet Explorer.

Monitoring add-on performance is something that many Firefox users have been waiting for, which is understandable considering the popularity of Firefox browser add-ons.

internet explorer addon load time

The Internet Explorer Beta is planned for August 2010. The beta will be the first release with full IE functionality.

Update: Internet Explorer 9 has been released in the meantime. It is available only for Windows Vista and Windows 7, and not Windows XP. The new performance advisor in Internet Explorer will pop up automatically when the browser is opened and at least one add-on exceeds the default load threshold of 0.2 seconds.

Microsoft then displays a notification to the user with options to disable add-ons. If that option is selected, a list of add-ons is displayed that exceed the load threshold. It is then possible to disable one, multiple or all add-ons, or change the load time threshold in a pull down menu.


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  1. Kyler IE Outreach said on June 29, 2010 at 9:45 pm

    Great post! You can follow us for the latest IE9 content on Twitter.
    Right now the 3rd test platform for IE9 is available at so give it a try for yourself

    IE Outreach Team

  2. subgrampus said on June 29, 2010 at 3:13 pm

    Although a notification button is not part of the web page, IE8 has an indication of “Load time” for add-ons (go-to “Tools”, “Manage Add-Ons”, “Toolsbars and Extensions”, far right-side of an add-on).

    1. Martin said on June 29, 2010 at 3:42 pm

      Thanks subgrampus, I knew I have seen those loading times before, now I know where ;)

  3. bf said on June 29, 2010 at 2:39 am

    “Internet Explorer 9 will inform the user if add-ons are slowing down the browsing experience.”

    That exactly what I want in Firefox 4.0. Instead, “redesigning interface” seems to be their main priority.

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