which is the speed web browser?

hello we can't say if a Browser is fast than another one.. it's depend of the connexion you have..nowday all the Browsers you listed have the Same Features and use the same systems (Tabs, popup blockers..etc) so the speed Depend about ya Computer and the Connexion speed you have.

I think Mozilla Firefox is best because I am using it and speed is more than others. But different person different choice.

If you got average config system go for firefox,but with more than 512 MB ram i insist you give internet explorer 8 a try, i tested it and it got lots of new security features when compared to ie7 and it even loads under 2 seconds. and i have noticed that in vista browsing is faster in ie7 compared to firefox,am not sure how this is possible but i have noticed the difference... happpy myloting