When closing a tab in Firefox, the page might present you with a dialog that looks similar to this:
Normally this alert dialog remains visible until you press the Leave Page button.
However, I noticed yesterday that this dialog was disappearing after a short period of time, and with it also went the tab. Thankfully one can press Ctrl + Shift + T to restore a closed tab.
Fixing this issue
Open about:config in firefox and search for dom.beforeunload_timeout_ms, and change this value to something longer like 10 or 15 seconds. Remember the value is in milliseconds, so multiply your chosen number of seconds by 1000.
| Restart Firefox, and profit! |
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