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Change tabs with mousewheel in Firefox 58
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/* To enable changing tabs by using the mouse wheel, | |
* enter this code into the browser console (Ctrl+Shift+J) */ | |
var onTabWheel = function(ev) { | |
if (ev.deltaMode == 1 /* DOM_DELTA_LINE */) { | |
var idx = gBrowser.tabContainer.getIndexOfItem(gBrowser.selectedTab); | |
var direction = ev.deltaY > 0 ? 1 : -1; | |
gBrowser.selectTabAtIndex((idx + direction) % gBrowser.tabs.length); | |
} | |
} | |
gBrowser.tabContainer.arrowScrollbox.addEventListener("wheel", onTabWheel); |
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@muesli someone in the manjaro forums figured out a way to enable this on startup