Πρόσθετο Flash - Κρατήστε το ενημερωμένο και αντιμετωπίστε προβλήματα

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The Adobe Flash Player browser plugin lets you view video and animated content in Firefox. This article has information about testing, updating, uninstalling and troubleshooting the Adobe Flash plugin.

Note: The Firefox Software Update feature does not update installed plugins. See the Adobe Security bulletins and advisories page for information about security and stability issues affecting Adobe Flash Player and other Adobe products.

Testing Flash

Visit Adobe's Test Page to see if the Flash plugin is installed and working properly. If it tells you that Flash is not installed, you can install Flash by following the instructions in the Install the Flash plugin to view videos, animations and games article or in the Updating Flash section, below.

Updating Flash

To check if your installation of Flash is up to date, visit Mozilla's Plugin Check page. If it says that Flash needs to be updated, install the latest version manually.

  1. Go to the Flash Player download page at Adobe.com and download the Flash installer.
    Caution: Adobe's download page may include a checkbox for optional software (such as Google Chrome or McAfee Security Scan) that is selected by default. If you do not clear the checkbox before downloading, that software will be installed on your computer when you open the Flash installer.
  2. When the download has finished, close Firefox.

    At the top of the Firefox window, click on the Firefox button and then select ExitAt the top of the Firefox window, click on the File menu and then select ExitOn the menu bar, click on the Firefox menu and select Quit FirefoxAt the top of the Firefox window, click on the File menu and select Quit

    Click the menu button New Fx Menu and then click ExitQuit Close 29

  3. Open the Flash installer file you downloaded and follow the instructions.
Note: If you are having problems with the Flash installer from Adobe's download page, you can download the full Flash Player installer directly from Adobe.com.
  1. Go to the Flash Player download page at Adobe.com and download the Flash installer.
  2. At the top of the Firefox window, click on the Firefox button and then select ExitAt the top of the Firefox window, click on the File menu and then select ExitOn the menu bar, click on the Firefox menu and select Quit FirefoxAt the top of the Firefox window, click on the File menu and select Quit

    Click the menu button New Fx Menu and then click ExitQuit Close 29

  3. Open the file you downloaded (i.e. install_flash_player_osx_intel.dmg).
  4. In the Finder, open the Install Adobe Flash Player.app to run the installer, then follow the installer's instructions.
  1. Go to the Flash Player download page at Adobe.com.
  2. When prompted, save the file (i.e. install_flash_player_"version"_linux."processor".tar.gz).
  3. At the top of the Firefox window, click on the Firefox button and then select ExitAt the top of the Firefox window, click on the File menu and then select ExitOn the menu bar, click on the Firefox menu and select Quit FirefoxAt the top of the Firefox window, click on the File menu and select Quit

    Click the menu button New Fx Menu and then click ExitQuit Close 29

  4. Open a Terminal window (in Gnome, click on the Applications menu, select Accessories, and then select Terminal.)
  5. In the Terminal window, change to the directory where you saved the file you downloaded (e.g. cd /home/user/Downloads).
  6. Extract libflashplayer.so from the file you downloaded with the command tar -zxvf install_flash_player_"version"_linux."processor".tar.gz.
  7. As the super user, copy the extracted file, libflashplayer.so, to your Firefox installation directory's plugins sub-directory. For example, if Firefox is installed in /usr/lib/mozilla, use the command sudo cp libflashplayer.so /usr/lib/mozilla/plugins and then enter your super user password when prompted.

    0a85171f1802a3b0d9f46ffb997ddc02-1260326970-447-1.png

Uninstalling Flash

Note: Running Adobe's uninstaller will remove Flash from all browsers where it is not built-in, including Internet Explorer. You will be prompted to reinstall Flash when you visit a page that requires it, such as Adobe's Test Page.

For instructions on uninstalling Flash, see Uninstall Flash Player - WindowsUninstall Flash Player - Mac OS at Adobe.com.

Troubleshooting

Flash plugin not working

If Adobe's Test Page does not show that Flash is working even though you have installed the latest version, your Flash plugin may be disabled. To make sure that Flash is enabled,

  1. At the top of the Firefox window, click on the Firefox buttonOn the menu bar, click on the Tools menuAt the top of the Firefox window, click on the Tools menu, and then click Add-ons. The Add-ons Manager tab will open. Click the menu button New Fx Menu and choose Add-ons. The Add-ons Manager tab will open.

  2. In the Add-ons Manager tab, select the Plugins panel.

If the Flash plugin is disabled, click Enable.

If the Flash plugin is disabled, select Always Activate in its drop-down menu.

The Adobe Flash plugin has crashed

If you see this message instead of Flash content, see Adobe Flash plugin has crashed - Prevent it from happening again.

Unresponsive plugin warning

Firefox will show you a warning dialog if the Flash plugin is taking longer then expected:

warning-unresponsive-plugin

See the article Warning Unresponsive plugin - What it means and how to fix it for solutions and workarounds.

Playing Flash videos makes Firefox hang

If Firefox stops responding or if the Flash plugin hangs or stops working when playing Flash videos or games, try these solutions:

  • Disable hardware acceleration in Flash:
    1. Go to this Adobe Flash Player Help page.
    2. Right-clickHold down the Ctrl key while you click on the Flash Player logo on that page, then click on Settings in the context menu. The Adobe Flash Player Settings screen will open.
    3. Click on the icon at the bottom-left of the Adobe Flash Player Settings window to open the Display panel.
    4. Remove the check mark from Enable hardware acceleration.

      fpSettings1.PNG
    5. Click Close to close the Adobe Flash Player Settings Window.
    6. Restart Firefox.

Cannot view full screen Flash videos

See Flash video won't play full screen on YouTube, Facebook and other websites.

Flash does not work properly and/or will not update

If Flash content does not work, acts strangely, or causes errors, or if you see a notice that you need to update Flash (for instance, at Mozilla's Plugin Check) even after installing the latest Flash version, uninstall and reinstall Flash.

Flash doesn't load video

If Flash videos or games may appear, black, white or grey and never play, see Flash 11.3 doesn't load video in Firefox.

Flash works in Internet Explorer or Chrome but not in Firefox

There are three different types of Flash Players: an ActiveX version for Internet Explorer, a Chrome version built-in the browser and a plugin version for Firefox and some other browsers. If you want Flash to work in Firefox you must install the plugin version, as explained above.




Based on information from Flash (mozillaZine KB)



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