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The flash player plugin has stopped working in Firefox on Ubuntu 16.04 .I cant find pepper flash for chromium either ,certain music sites require flash so are now not use-able.

marked as duplicate by David Foerster, Jorge Castro, Eric Carvalho, Pilot6, Videonauth May 16 '16 at 1:42

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sudo apt-get install browser-plugin-freshplayer-pepperflash

This command got flash working in Firefox for me.


Go to Official Adobe flash website, then download the install_flash_player_11_linux.x86_64.tar.gz and extract the tarball using:

tar -zxvf install_flash_player_11_linux.x86_64.tar.gz

You got the libflashplayer.so. Now copy this file to /usr/lib/firefox-addons/plugins directory using:

sudo cp libflashplayer.so /usr/lib/firefox-addons/plugins
  • manifest.json <- should we do anything with this file? – Seek Truth Jun 5 '18 at 15:25
  • I have tried both Firefox ESR 52 and 60 (new, Quantum) and managed to run plugin only for specific profile at ~/.mozilla/filefox/ProfileName/plugins – Svilen Jun 13 '18 at 10:50
  • 1
    I have copiedlibflashplayer.so (NPAPI) in ~/.mozilla/filefox/YourProfileName/plugins Tested on 16.04 (xUbuntu) with FlashPlayer v30. Note that plugin was not loaded from FirefoxProgramDir/plugins as written here: kb.mozillazine.org/Determining_plugin_directory_on_Linux @SeekTruth, plugin works without manifest.json file. – Svilen Jun 13 '18 at 11:08

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