Google Chrome:
Download IE Tab extension that acts as Internet Explorer emulator. It helps enable ActiveX controls in Google Chrome as it emulates IE by using the IE rendering engine directly within Chrome.
To add Extension go to: chrome: //chrome/extensions/
Then go to Web store and download it.
Or
Drag the below file on this path chrome: //chrome/extensions/
It will automatically get installed (for Google Chrome version 23.0.1271.97 m).
Firefox:
Download IE Tab extension that acts as Internet Explorer emulator.
Install ff-activex-host plugin to enable ActiveX controls in the browser. This plug-in makes it possible to use (host) ActiveX controls in Firefox and provides full access to the hosted control (events, functions, properties).
To add IE tab go to:
Tools->Add-ons->search for
IE Tab V2 (Enhanced IE Tab) 4.1.3.1(for Firefox version 18.0) and click on Install.
After installing IE tab download and run ffactivex-setup-r39.exe for enabling ActiveX from given link:
http://code.google.com/p/ff-activex-host/downloads/list
You can read more on IE tab from below link:
http://www.ietab.net/