Alternatively, left click on the mouse (hold down) and drag the cursor over what you want to copy, to highlight. Then right-click while holding cursor over the coloured (highlighted) area to show a drop-menu and left click on "copy". Then left click on the address bar to highlight it, right-click to show menu and left click "paste".
[Or "cut" instead of "copy" if you want to move a sentence or paragraph you have written to somewhere else.]
This is actually a lot easier and quicker than it looks written down!

Sue