The latest version of Firefox (65.01) is not allowing flash player to store local content on the computer. Every time a page on WGT is opened,
Flash Player asks to store local content. Tried going to global settings and
adding, but it will not let you add any websites. I rolled Firefox back
to the previous version and it works fine. I posted on Mozilla support page and received this response, which fixed the problem. Thought I would share it for any others that might be having this issue.
Normal
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MicrosoftInternetExplorer4
Mac NPAPI Sandbox - Mozilla Firefox
The Mac NPAPI Flash sandbox is enabled by default on Firefox 62 and later.
Disabling the sandbox requires using
about:config to set...
dom.ipc.plugins.sandbox-level.flash to 0
...and then restarting the browser.
The sandbox is known to prevent the following features from working:
- Print to PDF from the Flash print dialog
- Print to “Open in Preview” from the Flash print dialog
- Quicklook in the File->Open dialog
- Saving files to the filesystem from a Flash applet
- Flash applets downloading and running the Adobe Air
installer
- Flash triggering Adobe Air applications to run