The Google Chrome development team has stated that this feature will not be added to the feature request :
The philosophy of browser pop-ups and pop-ups is that they should be triggered by user actions.
An alternative would be to open the Popup.html file in a new tab using the following code or something similar
Note. It is required to call from the background page and require the "tab", permission
// Opens Popup.html in new tab chrome.tabs.create({'url': chrome.extension.getURL('popup.html')}, function(tab) { // Tab opened. });
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