Neither Firefox nor Google Chrome support ActiveX. You can find the reasons on their support web sites:
Firefox[
^] and
Google Chrome[
^].
But there are plug-ins for them which you will find in the given link.
I am considering that you are developing a web application. So you can't force the client to download these plug-ins. Thus these plug-ins do not solve your problem. You may have to re-consider your design. I don't know much about an alternative but a quick Google search for "
activex alternative[
^]" gives some good links. I would suggest you to study them and put up an answer here or a Technical blog about the same. :thumbsup: