>>>>Why does this work for me >>>> o = CREATEOBJECT("InternetExplorer.Application")
>>>>And this does not >>>> o = CREATEOBJECT("Firefox.Application")
>>>
>>>Because FireFox doesn't support automation this way, I guess.
>>
>>Will Chrome work? with CreateObject?
>
>AFAIK IE is the only browser that supports automation.

bit too all-encompassing a statement.
There is selenium, which allows automating browsers via JS (used a lot for automaTIC testing of websites/web programming
There also was an attempt to implement activeX compatible automation to Firefox around IE4, when I tested it it was partially working but incomplete (ages ago)