- Whitelist mode: Blocks all popups except ones of whitelisted pages
- Blacklist mode: Only blocks popups of blacklisted pages
You can also force iframes to follow the settings of their parent page even if they don't match the URL pattern.
If you're having problems with this extension, please let me know by using the "Need to report a problem?" link in the Reviews tab or using the form https://docs.google.com/forms/d/1cOif5qUHAQrOVwc-KabHT4D_EBkM78ue6Kbr85N2slw/viewform