== Firefox blocks Adobe Flash NPAPI plugin for 11.2.202.481 and earlier ==
Several serious [[https://helpx.adobe.com/security/products/flash-player/apsb15-18.html|security vulnerabilities]] were found in Adobe's flash plugin with exploits known to be in the wild. Because of the critical nature of the vulnerabilities, the Mozilla foundation decided to [[https://support.mozilla.org/en-US/kb/add-ons-cause-issues-are-on-blocklist?redirectlocale=en-US&redirectslug=Add-ons+Blocklist|block]] this version of the [[https://bugzilla.mozilla.org/show_bug.cgi?id=1182751|plugin]]. Unfortunately, at the time of the blocklist, only the PPAPI version of the plugin (as used by chromium) was available and Firefox users found the NPAPI plugin was blocked via Firefox's click-through security mechanism.

'''UPDATE:''' As of 2015/07/16, Adobe released 11.2.202.491 which fixes all known issues for PPAPI and NPAPI and updates are available for Ubuntu

==== Timeline ====
 * 2015 Jul 14: Adobe releases [[https://helpx.adobe.com/security/products/flash-player/apsb15-18.html|flash plugin security update]] for PPAPI ahead of NPAPI
 * 2015 Jul 14: Ubuntu Security contacts Adobe regarding NPAPI. Ubuntu told NPAPI plugin will be ready soon
 * 2015 Jul 14: Ubuntu releases adobeflash-plugin and flashplugin-nonfree with updates for PPAPI only
 * 2015 Jul 16: Adobe releases updates for NPAPI (11.2.202.491)
 * 2015 Jul 16: Ubuntu releases adobeflash-plugin and flashplugin-nonfree with updates for NPAPI (11.2.202.491), including the previous PPAPI fixes