|best| Download Link Adobe Flash Player Version 1150 Offline Installer — Direct Link

It was available in three main formats: ActiveX (for Internet Explorer), NPAPI (for Firefox/Safari), and PPAPI (for Chromium/Opera).

Adobe and security experts installing legacy versions of Flash Player on your primary computer. It was available in three main formats: ActiveX

Only download from reputable archives like the Internet Archive . Third-party "free download" sites often bundle malware with legacy installers. Modern Alternatives to Running Flash NPAPI (for Firefox/Safari)

Unlike the small "web installers," the offline version includes all necessary files to install without an internet connection. It was available in three main formats: ActiveX

Version 11.5 is over a decade old and contains numerous unpatched security flaws that hackers can exploit to take control of your system.