I just noticed a new Firefox extension after uninstalling the Bing Toolbar and restarting the browser. The extension is called Desktop Manager 2.2, both the options and uninstall buttons are disabled, the only permitted action is to disable the extension.
A right-click on the entry and the selection of About Default Manager 2.2 reveals that it is a Microsoft extension. No further information are provided on the other hand how it was installed in Firefox.
That's always a sign of concern, considering that you do not have much control over the extension apart from disabling this.
The reason why it appears in the add-ons manager of the browser this way is because it has been side-loaded. This is usually used in Enterprise environments to distribute extensions to all systems.
No information is provided on the extension's purpose, which surely leaves many Firefox users puzzled about how the extension was installed and what service it provides.
A search on both Bing and Google reveals no relevant entries about Default Manager 2.2. A broader search for Default Manager links it to Microsoft's Search Enhancement pack, the same pack that installs the Search Helper Extension in Firefox.
Uninstalling the Microsoft Desktop Manager from the system removes the Firefox extension as well. To verify the finding we installed Windows Live Essentials beta again. A restart of Firefox after the installation confirmed the findings. The Firefox add-on Default Manager 2.2 was once again installed in the web browser.
There are still two questions remaining:
Have you discovered other extensions that are installed with your consent? Let us know in the comments
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Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.