When View Page Source is requested, above the displayed page in a kind of title bar, provide LINE WRAP with ON-OFF option in a tick box. This has already been implemented for many years by all varieties of the Microsoft Edge Browser. Mozilla can investigate how Microsoft implements this idea, then implement the same or a similar method to what Microsoft has already implemented for all the various varieties of the FireFox browser, and ripple this as a useful option to be implemented on other types of browsers also in all languages.