-### FlashPlugin (Deprecated)
-Configure the default Flash plugin policy as well as origins for which Flash is allowed.
-
-`Allow` is a list of origins where Flash are allowed.
-
-`Block` is a list of origins where Flash is not allowed.
-
-`Default` determines whether or not Flash is allowed by default.
-
-`Locked` prevents the user from changing Flash preferences.
-
-**Compatibility:** Firefox 60, Firefox ESR 60\
-**CCK2 Equivalent:** `permissions.plugin`\
-**Preferences Affected:** `plugin.state.flash`
-
-#### Windows (GPO)
-```
-Software\Policies\Mozilla\Firefox\FlashPlugin\Allow\1 = "https://example.org"
-Software\Policies\Mozilla\Firefox\FlashPlugin\Block\1 = "https://example.edu"
-Software\Policies\Mozilla\Firefox\FlashPlugin\Default = 0x1 | 0x0
-Software\Policies\Mozilla\Firefox\FlashPlugin\Locked = 0x1 | 0x0
-```
-#### Windows (Intune)
-OMA-URI:
-```
-./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Flash/FlashPlugin_Allow
-```
-Value (string):
-```
-<enabled/>
-<data id="Permissions" value="1https://example.org2https://example.edu"/>
-```
-OMA-URI:
-```
-./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Flash/FlashPlugin_Locked
-```
-Value (string):
-```
-<enabled/> or <disabled/>
-```
-OMA-URI:
-```
-./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Flash/FlashPlugin_Default
-```
-Value (string):
-```
-<enabled/> or <disabled/>
-```
-#### macOS
-```
-<dict>
- <key>FlashPlugin</key>
- <dict>
- <key>Allow</key>
- <array>
- <string>http://example.org</string>
- </array>
- <key>Block</key>
- <array>
- <string>http://example.edu</string>
- </array>
- <key>Default</key>
- <true/> | <false/>
- <key>Locked</key>
- <true/> | <false/>
- </dict>
-</dict>
-```
-#### policies.json
-```
-{
- "policies": {
- "FlashPlugin": {
- "Allow": ["http://example.org/"],
- "Block": ["http://example.edu/"],
- "Default": true | false,
- "Locked": true | false
- }
- }
-}
-```