Hi, for me having a context menu item would seem no more convenient than the toggle button that is available on the navigation (URL) toolbar. Do you have the button on your toolbar? It is black and white with a letter "A" in both colors. If it isn't showing up, you may be able to add it via the Customize... option when right-clicking the bar.

Or is there a reason why a context menu item would be more convenient for you than the button on the toolbar? Also, what browser version are you using?

Thanks