To enable ActiveX controls in Internet Explorer, adjust its ActiveX settings to allow it to download ActiveX controls. Open Internet Explorer, click Tools at the top, and select Internet Options. On the Security tab, click Internet, and click Custom Level.
On the Custom Level settings screen in Internet Explorer, scroll down to the ActiveX controls and plug-ins section, select Enable for the Automatic Prompting for ActiveX Controls setting. Select Enable or Prompt for the Download Signed ActiveX controls, Run ActiveX Controls and Plug-ins and Script ActiveX Controls Marked Safe for Scripting options. Click OK to save the changes. In addition, starting in IE 9, the ActiveX Filtering feature filters out ActiveX content for security reasons. To unblock these contents, click the icon that looks like a blue circle at the top of the browser and click Turn off ActiveX Filtering.
Neither Google Chrome nor Mozilla Firefox provides native ActiveX support. To run ActiveX in these browsers, you need to install a plug-in such as IE Tab. The Chrome version of IE Tab is available in the Chrome Web Store, while the Firefox version is available on CNet.com. After installing, click the IE Tab icon next to the address bar in the browser to open a tab that interfaces with Internet Explorer.