Please do not listen to the Firefox plugin checker website when it comes to Adobe Acrobat or Adobe Reader, unless you want to switch to the current DC version. The plugin checker website simply will not be satisfied with any earlier version. That said, your plugin list next to your post (Question Details > More System Details) shows: * Adobe PDF Plug-In For Firefox and Netscape 11.0.'''8''' It should be the latest in the XI series: * Adobe PDF Plug-In For Firefox and Netscape 11.0.'''17''' Try to trigger the update from inside Adobe Reader: Click the Help menu, then Check for Updates. Adobe Reader should download the patch to update itself. If it doesn't, you can download from this page: http://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotes/11/11.0.17.html You might need to exit Firefox and start it up again to force detection of the updated plugin. Any improvement? You can use my plugin lister page to check the updated version: https://www.jeffersonscher.com/res/plugins.html

That worked. Thanks very much.