I am unable to use Thunderbird without a Yahoo ad popping up every few minutes. The pop-ups appear no matter what I am doing as long as Thunderbird is open. Any help blocking these ads would be appreciated. The following is the link to one of the ads:
https://login.yahoo.com/?src=oauth&client_id=dj0yJmk9NUtCTWFMNVpTaVJmJmQ9WVdrOVJ6UjVTa2xJTXpRbWNHbzl...
