Babylon Toolbar is a browser hijacker that will change the browser's homepage to It is also classified as adware, which displays advertisements, sponsored links, and spurious paid search results. The program will collect search terms from the user's search queries.

Babylon's translation software prompts to add the Babylon Toolbar on installation. The toolbar also comes bundled as an add-on with other software downloads.

In 2011, the CNET site started bundling the Babylon Toolbar with open-source packages such as Nmap. Gordon Lyon, the developer of Nmap, vented his anger online over the way the toolbar was tricked onto users. The vice-president of, Sean Murphy, stated an apology: "The bundling of this software was a mistake on our part and we apologize to the user and developer communities for the unrest it caused."

Today, Babylon does no longer distribute any bundles with its software, such as the Babylon translator.