Options -> Mouse
Mouse gesture to go back/forward
Option to enable this feature: Left click while holding right button to go back. Right click while holding left button to go forward.
Middle click to open site in new window
When this option is on, you can middle click a link and it will be opened in new window.
Support side-button to go back/forward
When this option is on, you can use the side buttons of the mouse to navigate back or forward.
Ctrl + Wheel to zoom page
When this option is on, you can press Ctrl + mouse wheel to zoom in/out the active page.