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Can't download large files, such as zip files or videos, or add-ons anymore. Refresh doesn't work.

  • 6 svar
  • 2 har dette problem
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  • Seneste svar af cor-el

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As it says in the title, I can't seem to download anything in Firefox anymore, aside from photos apparently. Zips files, videos, and program files always fail without even attempting to download. The download arrow pops up and that's about it. Add-ons just say that there was an error downloading and nothing else, except try again. Refresh Firefox doesn't work and neither does safe mode. Clean installs work, but only during the initial opening of the browser. If you close it and open it back up, it goes back to failing again.

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Separate Issue; Your System Details shows;

Installed Plug-ins

Shockwave Flash 16.0 r0 Adobe Shockwave for Director Netscape plug-in, version Adobe Shockwave for Director Netscape plug-in, version

Having more than one version of a program may cause issues.

Grab the uninstaller from here: Uninstall Flash Player | Windows Uninstall Flash Player | Mac Then reinstall the latest version.

Flash Player v16.0.0.296
Shockwave Director v12.1.6.156 http://get.adobe.com/shockwave/

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Some added toolbar and anti-virus add-ons are known to cause Firefox issues. Disable All of them.

Start Firefox in Safe Mode {web link} While you are in safe mode;

Type about:preferences#advanced<Enter> in the address bar.

Under Advanced, Select General. Look for and turn off Use Hardware Acceleration.

Poke around safe web sites. Are there any problems?

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I've rectified the multiple plug in issue, thanks for notifying me of that.

I've followed your instructions, but the issue still persist. When I go the add on market and click download, a pop up tells me Firefox doesn't have the needed file to modify the add on, which is more than it told me previously, and will hopefully help.

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In order to better assist you with your issue please provide us with a screenshot. If you need help to create a screenshot, please see How do I create a screenshot of my problem?

Once you've done this, attach the saved screenshot file to your forum post by clicking the Browse... button below the Post your reply box. This will help us to visualize the problem.

Thank you!

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New information. Do Not comment in bug reports please.


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It is possible that anti-virus software is corrupting downloaded files or is interfering otherwise.

Try to disable the real-time (live) scanning of files in your anti-virus software temporarily to see if that makes downloading work.