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scroll turns to unwanted zoom

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When scrolling with mouse wheel or gesture on a page that has a map, the scroll turns to zoom. How do I turn this behavior off. The ctrl button is not engaged. Thanks.

When scrolling with mouse wheel or gesture on a page that has a map, the scroll turns to zoom. How do I turn this behavior off. The ctrl button is not engaged. Thanks.

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All the time, some of the time . . . .

Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?

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You would have to avoid hovering the map (move pointer to far left or right) if this map supports a feature to use the mouse wheel to zoom the page in and out. There is no way to prevent this otherwise.

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I restarted both computers in Safe Mode: a Windows 7 machine with a mouse and a Windows 10 machine using the track pad. Both with Firefox 55.0.3.

Each zoomed on a map once the cursor hovered over it. What a pain in the neck.

This is recent behavior (about a month ago).

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As cor-el mentions, content in a page can intercept mouse and gesture actions and interpret them as they wish. Make sure your mouse pointer is positioned over a blank area of the page when navigating to get the default behavior.