Flashblock Plugin (2025)

Adobe stopped supporting Flash Player on December 31, 2020 , and blocked Flash content from running in the player starting January 12, 2021 .

Advisories - Critical Vulnerability in Adobe Shockwave Player flashblock plugin

For those using legacy systems or archival browsers, here is how the plugin typically functioned: Adobe stopped supporting Flash Player on December 31,

Flashblock was a popular browser extension used to prevent Adobe Flash content from loading automatically. While it was essential for security and performance during the peak of Flash usage, it is now largely because Adobe Flash Player reached its end-of-life (EOL) in 2021. Important Context flashblock plugin

Major browsers like Chrome, Firefox, and Edge have removed Flash support entirely. Consequently, extensions like Flashblock are no longer necessary for modern web browsing. How Flashblock Worked