51460

Flash content won't open in Firefox 64 on Windows 10

Question:

Beginning this week, Flash content won't open in Firefox. Instead I receive the message "To view this page ensure that Adobe Flash Player version 11.1.0 or greater is installed." I have successfully opened Flash content in Firefox continuously before this week.

Nothing that I know of has changed on my system. I am running Windows 10 1703 build. Firefox and Flash player are the latest.

I have tried uninstalling and reinstalling Firefox. I have uninstalled and reinstalled both the regular and debugger versions of Flash player 26.0.

Answer1:

To start and debug flash in FlashBuilder, Flashbuilder launches the SWF as file://- URL. The Current Version of Firefox only allows flash to run on http:// or https://.

You can force Firefox to allow file-URLs. Just type about:config in the Firefox adress bar. Search for item "plugins.http_https_only" an change the value to "false".

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