: In 2018, researchers and Mozilla's own community flagged the extension for "spying" on users by tracking browsing activity.
While is a highly rated tool for Chrome users, its official presence on Firefox is complicated. As of early 2026, the official Poper Blocker extension is often unavailable or removed from the Firefox Add-ons store. Additionally, some versions of this tool have faced scrutiny regarding user privacy, leading Firefox to issue warnings in the past. poper blocker for firefox
A pop-up blocker is an essential tool for anyone who wants to enjoy a secure and seamless browsing experience. By choosing one of the top pop-up blockers for Firefox, you can block unwanted pop-ups, protect your personal data, and enhance your online security. Remember to consider the features mentioned above and choose an extension that meets your needs. : In 2018, researchers and Mozilla's own community