execute background scripts only once in my chrome extension

Question

I am developing a chrome extension. My scripts are called everytime I reload a page or open a new tab. How I do make it to load the extension only once, i.e., when chrome starts and reset all values to default on browser close. I did go through most of the links available here in stackoverflow but was unable to focus it down to my situation. manifest.json ``` "background":{ "scripts":["common.js","example.js"], "persistent":true }, "content_scripts": [ { "matches": ["<all_urls>"], "js": ["myscript.js"] } ], "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'", "permissions": ["http://*/*", "https://*/*", "contextMenus", "tabs"] ``` And in one of my background javascripts, I am triggering an event: example.js ``` var DOMContentLoaded_event = document.createEvent("Event"); DOMContentLoaded_event.initEvent("DOMContentLoaded", true, true); window.document.dispatchEvent(DOMContentLoaded_event); ``` The above code is to trigger DONContent so that, the user need no…

Accepted Answer

As per your comments, you are trying to register a listener for when Chrome starts and loads your extension. You can achieve this with the `chrome.runtime.onStartup` event:

Fired when a profile that has this extension installed first starts up. This event is not fired when an incognito profile is started, even if this extension is operating in 'split' incognito mode.

It is as simple as:

```
chrome.runtime.onStartup.addListener(function () {
    /* Do some initialization */
});
```

execute background scripts only once in my chrome extension

Solution

Problem