-### Permissions
-Set permissions associated with camera, microphone, location, notifications, and autoplay. Because these are origins, not domains, entries with unique ports must be specified separately. See examples below.
-
-`Allow` is a list of origins where the feature is allowed.
-
-`Block` is a list of origins where the feature is not allowed.
-
-`BlockNewRequests` determines whether or not new requests can be made for the feature.
-
-`Locked` prevents the user from changing preferences for the feature.
-
-**Compatibility:** Firefox 62, Firefox ESR 60.2 (Autoplay added in Firefox 74, Firefox ESR 68.6\
-**CCK2 Equivalent:** N/A\
-**Preferences Affected:** `permissions.default.camera`,`permissions.default.microphone`,`permissions.default.geo`,`permissions.default.desktop-notification`
-
-#### Windows (GPO)
+### PDFjs
+Disable or configure PDF.js, the built-in PDF viewer.
+
+If `Enabled` is set to false, the built-in PDF viewer is disabled.
+
+If `EnablePermissions` is set to true, the built-in PDF viewer will honor document permissions like preventing the copying of text.
+
+Note: DisableBuiltinPDFViewer has not been deprecated. You can either continue to use it, or switch to using PDFjs->Enabled to disable the built-in PDF viewer. This new permission was added because we needed a place for PDFjs->EnabledPermissions.
+
+**Compatibility:** Firefox 77, Firefox ESR 68.9\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `pdfjs.diabled`,`pdfjs.enablePermissions`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\PDFjs\Enabled = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\PDFjs\EnablePermissions = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PDFjs/PDFjs_Enabled
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PDFjs/PDFjs_EnablePermissions
+```
+Value (string):
+```
+<enabled/>or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>PDFjs</key>
+ <dict>
+ <key>Enabled</key>
+ <true/> | <false/>
+ <key><EnablePermissions</key>
+ <true/> | <false/>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "PSFjs": {
+ "Enabled": true | false,
+ "EnablePermissions": true | false
+ }
+}
+```
+### Permissions
+Set permissions associated with camera, microphone, location, notifications, and autoplay. Because these are origins, not domains, entries with unique ports must be specified separately. See examples below.
+
+`Allow` is a list of origins where the feature is allowed.
+
+`Block` is a list of origins where the feature is not allowed.
+
+`BlockNewRequests` determines whether or not new requests can be made for the feature.
+
+`Locked` prevents the user from changing preferences for the feature.
+
+`Default` specifies the default value for Autoplay. block-audio-video is not supported on Firefox ESR 68.
+
+**Compatibility:** Firefox 62, Firefox ESR 60.2 (Autoplay added in Firefox 74, Firefox ESR 68.6, Autoplay Default/Locked added in Firefox 76, Firefox ESR 68.8)\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `permissions.default.camera`,`permissions.default.microphone`,`permissions.default.geo`,`permissions.default.desktop-notification`,`media.autoplay.default`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\Permissions\Camera\Allow\1 = "https://example.org"
+Software\Policies\Mozilla\Firefox\Permissions\Camera\Allow\2 = "https://example.org:1234"
+Software\Policies\Mozilla\Firefox\Permissions\Camera\Block\1 = "https://example.edu"
+Software\Policies\Mozilla\Firefox\Permissions\Camera\BlockNewRequests = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\Camera\Locked = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\Microphone\Allow\1 = "https://example.org"
+Software\Policies\Mozilla\Firefox\Permissions\Microphone\Block\1 = "https://example.edu"
+Software\Policies\Mozilla\Firefox\Permissions\Microphone\BlockNewRequests = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\Microphone\Locked = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\Location\Allow\1 = "https://example.org"
+Software\Policies\Mozilla\Firefox\Permissions\Location\Block\1 = "https://example.edu"
+Software\Policies\Mozilla\Firefox\Permissions\Location\BlockNewRequests = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\Location\Locked = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\Notifications\Allow\1 = "https://example.org"
+Software\Policies\Mozilla\Firefox\Permissions\Notifications\Block\1 = "https://example.edu"
+Software\Policies\Mozilla\Firefox\Permissions\Notifications\BlockNewRequests = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\Notifications\Locked = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Allow\1 = "https://example.org"
+Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Block\1 = "https://example.edu"
+Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Default = "allow-audio-video" | "block-audio" | "block-audio-video"
+Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Locked = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Location/Location_BlockNewRequests
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Location/Location_Locked
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_Allow
+```
+Value (string):
+```
+<enabled/>
+<data id="Permissions" value="1https://example.org"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_BlockNewRequests
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_Locked
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Allow
+```
+Value (string):
+```
+<enabled/>
+<data id="Permissions" value="1https://example.org"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Block
+```
+Value (string):
+```
+<enabled/>
+<data id="Permissions" value="1https://example.edu"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Default
+```
+Value (string):
+```
+<enabled/>
+<data id="Autoplay_Default" value="allow-audio-video | block-audio | block-audio-video"/>
+```
+OMA-URI: