There's nothing in IE7 that would make me give up Firefox as my primary browser. It's a big improvement, but if Microsoft is going to stop Firefox from bleeding their marketshare, they need to do more, faster.
Firefox is gaining marketshare steadily, converting more users with every passing month. Some switch because they fear the security problems in IE. I don't really buy into that as an excuse. Internet Explorer does indeed support ActiveX, which is a means of running native code through your web browser. And like any native code, it presents a security risk. You shouldn't run an ActiveX control any more than you would run an .exe you download from that website, because essentially that's what it is. That's also why you can do some really great stuff with ActiveX. But Firefox isn't my browser of choice because it's more secure. New versions of Firefox drop all the time with bunches of security fixes both big and small.
ExtremeTech
ExtremeTech