In Firefox, you can configure the mouse to scale-zoom. In `about:config`, change `mousewheel.with_control.action` to 5 (default is 3 if you want it back). Hol

In Firefox, you can configure the mouse to scale-zoom. In `about:config`, change `mousewheel.with_control.action` to 5 (default is 3 if you want it back). Holding Ctrl and scrolling will zoom in on the cursor location like a touchscreen pinch. Credit: https://superuser.com/questions/1659519/firefox-pinch-zoom-without-trackpad https://superuser.com/questions/1659519/firefox-pinch-zoom-w...