Is there a shortcut or a setting in about:config that allows me to use the pinch zoom feature with mouse and keyboard only? I dont' have a touch pad but like the pinch zoom much more than the classic "CSS zoom". I know I could use something like the Windows Magnifyer, but those tools rasterize the image...
1 Answer
Starting from Firefox 83, you can set the property mousewheel.with_control.action to 5 in the about:config page.
ctrl + mousewheel will then control the pinch zoom instead of the regular zoom.
If you need another key binding, you can use one of:
mousewheel.default.action
mousewheel.with_alt.action
mousewheel.with_control.action
mousewheel.with_meta.action
mousewheel.with_shift.action
mousewheel.with_win.action
The possible values from Firefox source code are:
0: Nothing happens
1: Scrolling contents
2: Go back or go forward, in your history
3: Zoom in or out (reflowing zoom).
4: Treat vertical wheel as horizontal scroll
5: Zoom in or out (pinch zoom).
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ctrl+ mousewheel ?ctrl+ mousewheel is not really a zoom, it just changes the dpi. I want to magnify the entire viewport WITHIN THE BROWSER so the edges of all vector graphics stay sharp. The feature is already there, but I need a way to use it without buying an external touchpad. I thought there could be a setting in about:config that switches the function ofctrl+ mousewheel.