why the keyword ranking for my site displays different result with different browser?

When i search my keyword ranking in google with firefox browser, the ranking# is 3,but if i change ie to search the result,the keyword ranking for my site is#5,I am a little confused about it,can any one explain what cuased the different result?

 

you can check if you have Google web history enabled in one of your browsers and disabled in another one. If it is enabled, it shows you websites you visited the most on the top

 

that's right.. and you might have forgotten to sign out your google account when you do the searching..

 

or maybe because you don't search DP that much. This question has been asked tons of times now.

 

For the first time I heard also like this, pretty big difference

 

clear cache then set it to google.com...maybe you're browsing different data center

 

if you cilick one site many times,it will rank top1