PDF files won't open on browser

[boomyeahdamnf95348896]

Hello, I managed to install Adobe reader extension on chrome and edge, then tried to open multiple PDF files, but they won't open but loading. I unistalled and reinstalled the extension and closed the browser and reopened it and still the same. I keep getting endless loading like this: 

Any help would be appreciated.

[Abambo]

Do the files download without the extention?

[kevin35992578w0cu]

Ensure proper installation, uninstall, and reinstall the extension, and then restart your browser. Check for browser compatibility and adjust extension permissions.

[try67]

They are probably LiveCycle Designer forms, a special kind of PDF files which are not really PDFs...

You should download them and then open directly in Reader, instead of in the browser window.