Install the browser extension

  Mozilla Firefox Quantum
        

If you previously used the old version of Firefox, the new extension may not automatically turn on. You should switch from the old extension to the new one. Restart Firefox.

  
  Google Chrome

Select "Enable extension" or check menu below if no an add extension window.

 OR 

You can install Chrome extension manually.

  

  
  Google Chrome clones (Opera,Slimjet,Comodo Dragon,etc...)

Restart browser.

  Vivaldi
  

Restart browser.

  Microsoft Internet Explorer

Select "Enable" and restart browser

Check the install of antIE addon in "Manage Add-ons" menu.