Refernce Link : https://support.google.com/adsense/answer/35730?hl=en

Step 1: Open settings

1. In a Chrome window, do one of the following:

   • In the browser address box, enter chrome://settings/content.

     OR

   • On the Chrome menu, select Settings > Show advanced settings, and then under Privacy, selectContent settings.

2. In the Content settings dialog box, under Cookies, make sure Allow local data to be set (recommended) is selected.

3. Select Done and refresh the browser.

 

Refernce Link : https://support.mozilla.org/en-US/kb/enable-and-disable-cookies-website-preferences

Step 1: Open settings

Mozilla Firefox

1. If you’re using Windows, in the Firefox window, select Open menu  > Options. 
   

   TIP:  If you’re using a Mac, go to Firefox > Preferences.

2. Select the Privacy tab.

3. In the History section under Firefox will, select Use custom settings for history.

4. Make sure Accept cookies from sites is checked and Accept third party cookies is set to Always, and then select OK.

 

Refernce Link : https://support.microsoft.com/en-in/help/17442/windows-internet-explorer-delete-manage-cookies

Step 1: Open settings

Internet Explorer

1. In Internet Explorer, in the menu bar, select Tools  > Internet options > Privacy > Advanced.

2. Adjusting the slider up from Accept all cookies to Low will grant options for adding individual host names to the list through the gray Sites button beneath the slider.

3. Select OK.

 

 

Refernce Link : https://www.timeanddate.com/custom/cookiessafari.html

Step 1: Open settings

Safari

1. Click on the right icon in Safari

2. Click Preferences...

3. Change to the Security tab

4. Select "Only from sites I visit" or "Allow"

5. Close the dialog using the cross.