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movies start over

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Since updating to Firefox 16.0.1 I'm having trouble when watching movie clips made in flash on certain sites. If i for instance watch a news clip the clip start and after 5 or so seconds it restarts and the sound kind of "echoes".

Firefox verion is as mentioned above. Flash is 11.4.402.287.

Since updating to Firefox 16.0.1 I'm having trouble when watching movie clips made in flash on certain sites. If i for instance watch a news clip the clip start and after 5 or so seconds it restarts and the sound kind of "echoes". Firefox verion is as mentioned above. Flash is 11.4.402.287.

All Replies (2)

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Try the Firefox Safe Mode to see how it works there. The Safe Mode is a troubleshooting mode, which disables most add-ons.

(If you're not using it, switch to the Default theme.)

  • You can open the Firefox 4.0+ Safe Mode by holding the Shift key when you use the Firefox desktop or Start menu shortcut.
  • Or use the Help menu item and click on the Restart with Add-ons Disabled... menu item while Firefox is running.

Don't select anything right now, just use "'Start in Safe Mode" To exit the Firefox Safe Mode, just close Firefox and wait a few seconds before using the Firefox shortcut (without the Shift key) to open it again. If it is good in the Firefox Safe Mode, your problem is probably caused by an extension, and you need to figure out which one.

Please follow the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article for that.

When you figure out what's causing your issues, please let us know. It might help other users who have the same problem.

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You may be having another plugin that also can handle Flash movies that tries to play the file as well.

You can try to disable other plugins that play media files like VLC.


You can check for problems caused by recent Flash updates and try these:

  • disable a possible RealPlayer Browser Record Plugin extension for Firefox and update the RealPlayer if installed
  • disable protected mode in Flash 11.3 and later
  • disable hardware acceleration in the Flash plugin