When reading print on various websites, I am unable to zoom in and have print wrap so that the entire article, etc. remains in view, on screen.
Often I read the articles on line; I would like to have the font size not only zoom in, but also automatically wrap so that the entire width of each line of the articles remains within the horizontal viewing area of the screen.
Alla svar (1)
Firefox has two kinds of zoom: full page or proportional zoom, and text-only zoom. The full page zoom can expand the layout beyond the screen, so that might be the problem. You could switch to text-only zoom and see whether that works better. Most sites do have some layout breakage with text-only zoom, however.
Alt+v (opens the classic View menu) > Zoom > Zoom Text Only
If that doesn't help, perhaps look around for an add-on that fixes the layout?