How to turn off pop-up notifications from sites in Chrome, Opera and Firefox

Chrome

1. Open your browser settings.

2. At the very bottom, select "Show advanced settings".

3. Find the "Personal Information" section. In it, you should click on the "Content Settings" button.

4. A pop-up window will appear in front of you. Find the "Alerts" section in it.

5. To once and for all prohibit sites from offering you the display of alerts, enable the "Do not show alerts on sites" option.

6. If you have previously given permission to some site, but now want to revoke it, then click on the "Configure exclusions" button. Any site can be removed or added here.

There is an even easier way to get rid of those annoying notifications. Open the site whose resolution you want to change, and click on the icon at the far left in the address bar. You will see a large menu of individual page settings.

Find the "Alerts" option and set the required value for it.

Opera

The Opera browser is based on the same engine that is used in Chrome. Therefore, their settings are approximately the same, the only difference is in the names of the items.

Open your browser settings.
Go to the "Sites" page. This is where the required "Notifications" section is located.
Remove sites that you no longer want to follow for updates. Here you can also prevent all sites from showing notifications.

Firefox

Firefox can also be configured to display notifications. Open the program settings and then the "Content" tab. Here you can set which sites are allowed to disturb you and which sites are prohibited.

The same action can be performed using the icon in the address bar. Click on the i-shaped icon and set the resolution for the specific site you are currently on.