To enable flash you need to configure the flash player via a config file.
So Adobe put a killswitch in many flash player upgrades ago, and never told anyone publicly… well until about December last year…..
The joy of living in New Zealand is that we are the first to see the new day. Downside is that anything that is time-bombed, we get to see first as well…..
So come the 12 January 2021, the morning brings us helpdesk calls of flash has stopped working. Tidings of great joy.
Not only that , but Adobe has stopped you from downloading flash from their site
It also appears that any new install of a browser will not be able to download a flash plugin relevant for the browser
The solution is to whitelist the URLs you need in a flash config file
Details are here under Chapter 4 – Enterprise Enablement
Short answer for IE11
Is to put a mms.cfg file into the following locations
This covers both the 32 and 64 bit version of IE11
Example MMS.CFG file
EOLUninstallDisable=1 EnableAllowList=1 AllowListUrlPattern= http://www.ultrasounds.com/ AllowListUrlPattern= https://www.ultrasounds.com/
The website in the example file is one referenced in Google Chrome documentation, Preparing your enterprise for Flash deprecation | Google Cloud Blog so I am happy to use it as a reference test site.
Short answer for Google Chrome
Read the document Adobe Flash Player Administration Guide for Flash Player | Adobe Developer Connection, page 36.
I quickly tried Google Chrome, but could not get it to work. That’s my job for tomorrow, but in reality Chrome V88 and higher will just break things anyhow, so I am only going to spend time on this if we really need something running in Chrome that cannot run in IE11
Short answer for MS Edge
You should be able to follow the Chrome instructions
Directory appears to be
C:\Users\<username>\AppData\Local\Microsoft\Edge\User Data\Default\Pepper Data\Shockwave Flash\System and is user based like Chrome
MS Edge V88 and higher will remove support to a point as it is based on Chromium , but MS Edge V88 is able to rely on the IE11 engine to use flash.
I am sure that there will be some location to put the mms.cfg file in, but MS Premier Support have been less than helpful in this whole event, stating that you cannot enable flash again after 12/01/2021
“Microsoft Edge will allow Adobe Flash Player to load as a plug-in via the Internet Explorer mode feature.”
NOTE: This is until in the USA Summer, it will be finally axed. So once MS EdgeV88 comes out, I will need to test
Long Term Solution
Using Google Chrome is a dead end
MS Edge using Internet Explorer mode feature should get you through till June see http://britv8.com/enabling-flash-player-after-12th-january-2021/
After June , then the packaged browser via https://services.harman.com/partners/adobe is the adobe recommended option
New Browser Installs
Also note that so far I have found new install of Edge I have done does not download the flash extension, you get a “we could not download” this I assume is because it is being downloaded from Adobe’s site and they have removed all download locations.
Hope this helps someone out there