Start a browser the usual way for you. You need to call the command from the top menu bar of the browser. If you do not see the menu bar, then it is not enabled. Click the right mouse button on the browser toolbar, in the drop-down menu, select the marker in front of the first line "menu Bar".
Under "Tools" select the item "Settings" by clicking on it with the left mouse button will open a dialog box. Navigate in the window that opens on the Advanced tab. In sections, locate the General tab. On this tab, under "Browsing" put a token in the box next to "Use smooth scrolling". Click OK to the new settings took effect.
To disable this option can be the same way – just remove the marker from the above-mentioned fields and confirm the new settings. The majority of users uses to scroll the mouse wheel. Settings responsible in General for the operation of the mouse wheel you can find in the "properties of: Mouse".
To invoke the properties window of the mouse via the menu "start", go to "control Panel". In the category "Printers and other hardware" click "Mouse" with the left mouse button. If "control Panel" is in classic view, click the mouse once – this will open a search window.
Go to the tab "Wheel". Here you can specify the number of lines that will scroll the page when using the mouse wheel. To do this in the section "Scrolling" specify the desired number of rows using the arrow buttons or enter a value from the keyboard. If you have no need to view the text line by line, set the marker next to the line "one screen". Click "Apply" and close the properties window.