Alt+Scroll do not work since updated to firefox 17.0
Usually I use Alt+mouse scroll to scroll one line in firefox, but since updated to firefox 17.0, it do not work anymore, even in safety mode.
被選擇的解決方法
hello pikashi, the scrolling behaviour was overhauled in firefox 17 (for technical reference see https://wiki.mozilla.org/Gecko:Mouse_Wheel_Scrolling).
it should still be possible to set a different scroll speed when the alt-key is pressed. you can enter about:config into the firefox location bar (confirm the info message in case it shows up), search for the preferences starting with mousewheel.with_alt.delta_multiplier_ ... you can double-click those settings & assign a different value to them - then a restart of firefox is required for changed settings to take effect in the browser.
i'm not exactly sure how they work, but for example by setting them all to 33 instead of 100 the scrolling speed is considerably reduced. you might want to play around a little bit to find the ideal values that fit your need...
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選擇的解決方法
hello pikashi, the scrolling behaviour was overhauled in firefox 17 (for technical reference see https://wiki.mozilla.org/Gecko:Mouse_Wheel_Scrolling).
it should still be possible to set a different scroll speed when the alt-key is pressed. you can enter about:config into the firefox location bar (confirm the info message in case it shows up), search for the preferences starting with mousewheel.with_alt.delta_multiplier_ ... you can double-click those settings & assign a different value to them - then a restart of firefox is required for changed settings to take effect in the browser.
i'm not exactly sure how they work, but for example by setting them all to 33 instead of 100 the scrolling speed is considerably reduced. you might want to play around a little bit to find the ideal values that fit your need...
It's ok now, thank you very much!