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Solved

Double clicking on a tab closes it. Is it a bug?

TyDraniu replied
a

Is it a bug? Is there a way to turn it off? It's too easy for me to accidentally close a tab this way. I cannot reproduce in Troubleshoot Mode but I can't find any setting or installed extension that seems to control it.

(Here's an mp4 in addition to attached gif (extract code: bujo))

Is it a bug? Is there a way to turn it off? It's too easy for me to accidentally close a tab this way. I cannot reproduce in Troubleshoot Mode but I can't find any setting or installed extension that seems to control it. ([https://wwblo.lanzn.com/iRnUf3vm58di Here's an mp4 in addition to attached gif (extract code: bujo)])
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選擇的解決方法

Go to about:config and switch browser.tabs.closeTabByDblclick to false

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