Changing Notification permissions for a given website?

kidsil · April 28, 2020, 5:29pm

Hi there,
I’m trying to change the Notification permissions for a given website.
I was able to fetch the current permission via:
const result = await browser.tabs.executeScript(tabId, {code:'Notification.permission'});

I’m not sure however how to set the Notification permission for a given website…?

Thanks a lot in advance!

sylvaing · April 28, 2020, 5:41pm

Hi,

The ‘permission’ property is read-only. It indicates the current permission granted by the user.

Only the user can change this permission. The user prompt can be shown via https://developer.mozilla.org/en-US/docs/Web/API/Notification/requestPermission

kidsil · April 29, 2020, 7:30am

Is there a way to temporarily block Notifications coming from a specific tab (programmatically, of course)?

freaktechnik · April 29, 2020, 4:53pm

Sure, you can overwrite the notification APIs and ignore the calls. Note that this does not work for service workers.

Example content script that intercepts the notification APIs:

github.com

freaktechnik/notification-sounds/blob/master/scripts/content-script.js

"use strict";
/* global cloneInto, exportFunction */
//TODO handle renotify & tag

const OPTIONS_INDEX = 1,
    dispatchNotificationEvent = (options) => {
        if(Notification.permission === "granted" && (!options || !options.silent)) {
            if(!options || !options.sound) {
                browser.runtime.sendMessage("new-notification");
            }
            else {
                browser.runtime.sendMessage({
                    command: 'play',
                    url: new URL(options.sound, window.location).toString()
                });
            }
        }
    },
    OriginalNotification = window.wrappedJSObject.Notification,
    /**

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