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why my firefox can't open a website and download video?

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i can't browsing in firefox or i can't open the website and download from firefox. how to solve this?

i can't browsing in firefox or i can't open the website and download from firefox. how to solve this?

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Try these troubleshooting steps:

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Security Issue: Update your Flash Player Version 18.0.0.232
https://www.adobe.com/products/flashplayer/distribution3.html
Note: Windows users must download the “Internet Explorer” and “Plugin-based browsers” installers.

Note: Edge on Win10 does not use ActiveX version but its own Flash.

See if there are updates for your graphics drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration


Your System Details shows;

Installed Plug-ins

VLC media player Web Plugin 2.0.2 VLC media player Web Plugin 2.0.6
Having more than one version of a program may cause issues. You must remove the older programs. Then get the current full installer.

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You can find the installation path of all plugins on the about:plugins page.

See also "Manually uninstalling a plugin":