[beavis2]

If that where the case, FireFox would have overtook IE.

[snaky]

And that was the trend clearly. Back in 2008 Firefox had 33%, and IE 59.4%. Basically, Firefox was unstoppable before Chrome started. https://en.wikipedia.org/wiki/Usage_share_of_web_browsers

By another stat counter, for 5 years from 2004 to 2009, Firefox raised from 2% to 20%, while IE fallen from 95% down to 67%.