+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Handlers
+```
+Value (string):
+```
+<enabled/>
+<data id="Handlers" value='
+{
+ "mimeTypes": {
+ "application/msword": {
+ "action": "useSystemDefault",
+ "ask": true | false
+ }
+ },
+ "schemes": {
+ "mailto": {
+ "action": "useHelperApp",
+ "ask": true | false,
+ "handlers": [{
+ "name": "Gmail",
+ "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&url=%s"
+ }]
+ }
+ },
+ "extensions": {
+ "pdf": {
+ "action": "useHelperApp",
+ "ask": true | false,
+ "handlers": [{
+ "name": "Adobe Acrobat",
+ "path": "C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Reader\\AcroRd32.exe"
+ }]
+ }
+ }
+}
+'/>
+```
+#### macOS
+```
+<dict>
+ <key>Handlers</key>
+ <dict>
+ <key>mimeTypes</key>
+ <dict>
+ <key>application/msword</key>
+ <dict>
+ <key>action</key>
+ <string>useSystemDefault</string>
+ <key>ask</key>
+ <true/> | <false/>
+ </dict>
+ </dict>
+ <key>schemes</key>
+ <dict>
+ <key>mailto</key>
+ <dict>
+ <key>action</key>
+ <string>useHelperApp</string>
+ <key>ask</key>
+ <true/> | <false/>
+ <key>handlers</key>
+ <array>
+ <dict>
+ <key>name</key>
+ <string>Gmail</string>
+ <key>uriTemplate</key>
+ <string>https://mail.google.com/mail/?extsrc=mailto&url=%s</string>
+ </dict>
+ </array>
+ </dict>
+ </dict>
+ <key>extensions</key>
+ <dict>
+ <key>pdf</key>
+ <dict>
+ <key>action</key>
+ <string>useHelperApp</string>
+ <key>ask</key>
+ <true/> | <false/>
+ <key>handlers</key>
+ <array>
+ <dict>
+ <key>name</key>
+ <string>Adobe Acrobat</string>
+ <key>path</key>
+ <string>/System/Applications/Preview.app</string>
+ </dict>
+ </array>
+ </dict>
+ </dict>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "Handlers": {
+ "mimeTypes": {
+ "application/msword": {
+ "action": "useSystemDefault",
+ "ask": false
+ }
+ },
+ "schemes": {
+ "mailto": {
+ "action": "useHelperApp",
+ "ask": true | false,
+ "handlers": [{
+ "name": "Gmail",
+ "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&url=%s"
+ }]
+ }
+ },
+ "extensions": {
+ "pdf": {
+ "action": "useHelperApp",
+ "ask": true | false,
+ "handlers": [{
+ "name": "Adobe Acrobat",
+ "path": "/usr/bin/acroread"
+ }]
+ }
+ }
+ }
+ }
+}
+```
+### FirefoxHome
+Customize the Firefox Home page.
+
+**Compatibility:** Firefox 68, Firefox ESR 68\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `browser.newtabpage.activity-stream.showSearch`,`browser.newtabpage.activity-stream.feeds.topsites`,`browser.newtabpage.activity-stream.feeds.section.highlights`,`browser.newtabpage.activity-stream.feeds.section.topstories`,`browser.newtabpage.activity-stream.feeds.snippets`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\FirefoxHome\Search = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\FirefoxHome\TopSites = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\FirefoxHome\Highlights = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\FirefoxHome\Pocket = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\FirefoxHome\Snippets = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\FirefoxHome\Locked = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/CustomizeFirefoxHome
+```
+Value (string):
+```
+<enabled/>
+<data id="FirefoxHome_Search" value="true | false"/>
+<data id="FirefoxHome_TopSites" value="true | false"/>
+<data id="FirefoxHome_Highlights" value="true | false"/>
+<data id="FirefoxHome_Pocket" value="true | false"/>
+<data id="FirefoxHome_Snippets" value="true | false"/>
+<data id="FirefoxHome_Locked" value="true | false"/>
+```
+#### macOS
+```
+<dict>
+ <key>FirefoxHome</key>
+ <dict>
+ <key>Search</key>
+ <true/> | <false/>
+ <key>TopSites</key>
+ <true/> | <false/>
+ <key>Highlights</key>
+ <true/> | <false/>
+ <key>Pocket</key>