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How can I fix this "Adobe two-version" problem, so only the latest version stays enabled, the old version stays DISABLED, and/or uninstall the old version?

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I went to my add-ons tab, and I DO, in fact, have two versions of shockwave flash, an 11.9...version, and a 13.9..., which, if I'm not mistaken, is the latest version. There is a "ask to activate, always activate, never activate" button for EVERY add-on. I clicked never activate on the older version, and closed the tab. I then tried to play a video off of the Web. It would not play, I tried another site with the same result, so I went back to my add-on tab, and the button for the older version had changed back to "always activate" by itself. It continues to repeat this, and WILL NOT stay on "never activate". Every few times I return to the add-ons page, THE NEW VERSION IS DISABLED, AS WELL AS THE OLD ONE. I've tried to uninstall the old version, but when I go through control panel, and bring up the folder contents, the old version isn't even there! I've done start, find, and typed in "Adobe", and the old version is NOT FOUND! Both versions keep changing back and forth on the activate button, and they both will disable on their own, no matter how many times I fix it! smh!!

I went to my add-ons tab, and I DO, in fact, have two versions of shockwave flash, an 11.9...version, and a 13.9..., which, if I'm not mistaken, is the latest version. There is a "ask to activate, always activate, never activate" button for EVERY add-on. I clicked never activate on the older version, and closed the tab. I then tried to play a video off of the Web. It would not play, I tried another site with the same result, so I went back to my add-on tab, and the button for the older version had changed back to "always activate" by itself. It continues to repeat this, and WILL NOT stay on "never activate". Every few times I return to the add-ons page, THE NEW VERSION IS DISABLED, AS WELL AS THE OLD ONE. I've tried to uninstall the old version, but when I go through control panel, and bring up the folder contents, the old version isn't even there! I've done start, find, and typed in "Adobe", and the old version is NOT FOUND! Both versions keep changing back and forth on the activate button, and they both will disable on their own, no matter how many times I fix it! smh!!

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No worries, I was just getting started.

The Flash plugin is stored in this folder:

C:\Windows\SysWOW64\Macromed\Flash

The file names for the plugin used in Firefox have this pattern:

NPSWF32_13_0_0_206.dll

where the middle part (no bolded) is the plugin version number.

Adobe's updater should normally clean out old versions but if they are actively in use, it's possible that the updater is not able to remove them.

If you find the old file, try deleting it or moving it to the Desktop temporary.

Firefox may not realize immediately that the file is gone, but hopefully will detect that after the next time you exit and start it back up when it updates its plugin scan.

Any luck?

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uninstalled and re-installed. No dice.

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uninstalled and re-installed. No dice.

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Uninstalled and re-installed. No dice.

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Just to confirm: You now only have the most recent Flash player version showing in Firefox/Tools > Add-ons > Plugins and on the about:plugins page?

Do the Adobe test pages confirm this?


Do you have any content blocking extensions or security software that might be causing issues?

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window
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