Zend certified PHP/Magento developer

Pinching touchpad enlarges/magnifies website instead of changing zoom level

When I try to pinch zoom website in Firefox, instead of changing zoom level (like enlarging text but modifying layout so it still fits screen) it enlarges parts of website, adding horizontal scrollbar.

Pinching enlarges part of screen

If I hold ctrl when pinching using touchpad (or use ctrl + mouse scroll wheel), it then changes page zoom and updates zoom value (110%, 120%…).

Pinching while holding ctrl changes zoom level

Is there a way to change touchpad behaviour so I can change zoom level by pinching without holding ctrl? OS is Windows 10. Additionally, ctrl + pinch method doesn’t work in Edge – still only magnifies part of website.