Open in IE is a Firefox extension designed to enhance link management by seamlessly opening current tabs or links in Microsoft's Internet Explorer. This tool eliminates the need for manual copying and pasting, allowing users to quickly send links to Internet Explorer. If an instance of Internet Explorer is already open, the extension opens the link in a new tab; otherwise, it launches a new window. The configuration options allow users to customize how links are handled, including support for managed storage by domain administrators.

Additionally, Open in IE offers various methods for link opening, such as left-click or a combination of left-click and keyboard modifiers. It also allows users to set preferences for specific domains to be opened with an external download manager. To utilize the extension effectively, users must install a minimal native client, with detailed instructions provided upon link opening requests. Overall, this extension provides a practical solution for users needing to integrate Internet Explorer into their browsing workflow.