Why do some of my Chrome tabs have a blue dot on them like this?
asked Sep 30, 2016 at 13:21
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3 Answers
This means that the title has changed. Chrome used to indicate this with a more subtle effect as described in this question: Pinned tab on Google Chrome has a rippling or highlighting effect
It can also mean that a dialog is open on that page, such as an alert or print dialog.
answered Sep 30, 2016 at 13:21
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Title change blue dot was removed in 2018 [1]. The only remaining cause is that there's a dialog (e.g. JavaScript
alert, URL Protocol launch permission prompt, print preview) showing on the background tab and it wants attention. [1] bugs.chromium.org/p/chromium/issues/detail?id=482776#c38– EricLawOct 13, 2022 at 16:09
It means that there is a change of status on that page. The page has changed.
answered Sep 30, 2016 at 14:03
It would also show up in case there is an alert popup.
To view this in action, open 2 tabs. In the first page open console and type:
setTimeout(()=>{alert('hello')},5000);
and press enter.
Then navigate to 2nd tab. After 5 sec, you will see a blue dot on the first tab.
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Can you provide a bit more detail as to what an
alertpop up is? Dec 21, 2018 at 16:12