When the back button is clicked the user is taken to not only the previous page but also the part of the page where he/she was before coming to the present page. At least this is the behavior in Firefox.
So for example, if you are at the bottom of a page and you click on one of the footer links and then you click the back button, you will be taken to the footer part of the previous page.
Is there a way to force the browser to disregard what part of the page the user was and just take them to the top of the previous page every time when the back button is clicked?
Add this :
But I agree with Steve and Bathz : check your web page needs it as users don’t like the browser comportment to be changed.