Shockwave Flash Plugin hangs when accessing USM in CA UIM 8.2 or 8.31

Document ID : KB000034290
Last Modified Date : 14/02/2018
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Summary

- Environment: UMP 8.2 or 8.31
- Flash version (most recent as of 10/27/2015)-> 19.0.0.226 -> same version for Firefox or IE
- Firefox browser version 41.0.2

This Warning/persistent Flash hang/crash of the plugin is a known issue in Mozilla Firefox:

"Shockwave Flash may be busy, or it may have stopped responding. You can stop the plugin now, or you can continue to see if the plugin will complete."

See:
https://crash-stats.mozilla.com/report/index/1da120bd-30ff-4ef4-b077-469f92151027

Additional Information
I couldn't find any workaround in Firefox BUT I tried the same steps using IE 11 and although there was a slight delay in the browser, I did NOT get the warning popup AND the response time for loading USM and accessing reports was significantly better (2 to 5 seconds). IE 11 (IE 11 is not officially supported as of 10/27/2015).