diff --git a/api/WebGL2RenderingContext.json b/api/WebGL2RenderingContext.json
index c5fc9c5fc344d1..5075cffa2c959c 100644
--- a/api/WebGL2RenderingContext.json
+++ b/api/WebGL2RenderingContext.json
@@ -7205,7 +7205,11 @@
             "firefox": {
               "version_added": "51"
             },
-            "firefox_android": "mirror",
+            "firefox_android": {
+              "version_added": "51",
+              "partial_implementation": true,
+              "notes": "Textures from video elements are not supported. See <a href='https://bugzil.la/1884282'>bug 1884282</a>."
+            },
             "ie": {
               "version_added": false
             },
@@ -7488,7 +7492,11 @@
             "firefox": {
               "version_added": "51"
             },
-            "firefox_android": "mirror",
+            "firefox_android": {
+              "version_added": "51",
+              "partial_implementation": true,
+              "notes": "Textures from video elements are not supported. See <a href='https://bugzil.la/1884282'>bug 1884282</a>."
+            },
             "ie": {
               "version_added": false
             },
diff --git a/api/WebGLRenderingContext.json b/api/WebGLRenderingContext.json
index 0e597cbb55996b..e40cebdd7adac6 100644
--- a/api/WebGLRenderingContext.json
+++ b/api/WebGLRenderingContext.json
@@ -5554,7 +5554,11 @@
             "firefox": {
               "version_added": "4"
             },
-            "firefox_android": "mirror",
+            "firefox_android": {
+              "version_added": "4",
+              "partial_implementation": true,
+              "notes": "Textures from video elements are not supported. See <a href='https://bugzil.la/1884282'>bug 1884282</a>."
+            },
             "ie": {
               "version_added": "11"
             },
@@ -5713,7 +5717,11 @@
             "firefox": {
               "version_added": "4"
             },
-            "firefox_android": "mirror",
+            "firefox_android": {
+              "version_added": "4",
+              "partial_implementation": true,
+              "notes": "Textures from video elements are not supported. See <a href='https://bugzil.la/1884282'>bug 1884282</a>."
+            },
             "ie": {
               "version_added": "11"
             },