diff --git a/inputfiles/patches/mediacapture-image.kdl b/inputfiles/patches/mediacapture-image.kdl
new file mode 100644
index 000000000..a567591f3
--- /dev/null
+++ b/inputfiles/patches/mediacapture-image.kdl
@@ -0,0 +1,79 @@
+removals {
+  // Image Capture extensions which are Blink only as of 2025-04
+  // https://w3c.github.io/mediacapture-image/#mediatrackcapabilities-section
+  dictionary MediaTrackCapabilities {
+    member whiteBalanceMode
+    member exposureMode
+    member focusMode
+    member exposureCompensation
+    member exposureTime
+    member colorTemperature
+    member iso
+    member brightness
+    member contrast
+    member saturation
+    member sharpness
+    member focusDistance
+    member pan
+    member tilt
+    member zoom
+    member torch
+  }
+
+  dictionary MediaTrackConstraintSet {
+    member whiteBalanceMode
+    member exposureMode
+    member focusMode
+    member pointsOfInterest
+    member exposureCompensation
+    member exposureTime
+    member colorTemperature
+    member iso
+    member brightness
+    member contrast
+    member saturation
+    member sharpness
+    member focusDistance
+    member pan
+    member tilt
+    member zoom
+    member torch
+  }
+
+  dictionary MediaTrackSettings {
+    member exposureMode
+    member focusMode
+    member pointsOfInterest
+    member exposureCompensation
+    member exposureTime
+    member colorTemperature
+    member iso
+    member brightness
+    member contrast
+    member saturation
+    member sharpness
+    member focusDistance
+    member pan
+    member tilt
+  }
+
+  dictionary MediaTrackSupportedConstraints {
+    member whiteBalanceMode
+    member exposureMode
+    member focusMode
+    member pointsOfInterest
+    member exposureCompensation
+    member exposureTime
+    member colorTemperature
+    member iso
+    member brightness
+    member contrast
+    member saturation
+    member sharpness
+    member focusDistance
+    member pan
+    member tilt
+    member zoom
+    member torch
+  }
+}
diff --git a/inputfiles/patches/mediacapture-main.kdl b/inputfiles/patches/mediacapture-main.kdl
new file mode 100644
index 000000000..4639883ee
--- /dev/null
+++ b/inputfiles/patches/mediacapture-main.kdl
@@ -0,0 +1,24 @@
+removals {
+  // Gecko: https://searchfox.org/firefox-main/source/dom/webidl/MediaTrackCapabilities.webidl
+  // WebKit: https://searchfox.org/wubkat/source/Source/WebCore/Modules/mediastream/MediaStreamTrack.idl
+  // Blink: https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/modules/mediastream/media_track_capabilities.idl
+  dictionary MediaTrackCapabilities {
+    member latency // Blink only as of 2022-11
+    member resizeMode // Blink only as of 2022-11
+  }
+
+  dictionary MediaTrackConstraintSet {
+    member latency // Blink only as of 2022-11
+    member resizeMode // Blink only as of 2022-11
+  }
+
+  dictionary MediaTrackSettings {
+    member latency // Blink only as of 2025-04
+    member resizeMode // Blink only as of 2025-04
+  }
+
+  dictionary MediaTrackSupportedConstraints {
+    member latency
+    member resizeMode
+  }
+}
diff --git a/inputfiles/patches/mediacapture-screen.kdl b/inputfiles/patches/mediacapture-screen.kdl
new file mode 100644
index 000000000..3ba57f6fb
--- /dev/null
+++ b/inputfiles/patches/mediacapture-screen.kdl
@@ -0,0 +1,30 @@
+removals {
+  // Screen Share extensions
+  // https://w3c.github.io/mediacapture-screen-share/#mediadevices-additions
+  dictionary MediaTrackCapabilities {
+    member cursor
+    member logicalSurface
+  }
+
+  dictionary MediaTrackConstraintSet {
+    member cursor
+    member logicalSurface
+    member restrictOwnAudio
+    member suppressLocalAudioPlayback
+  }
+
+  dictionary MediaTrackSettings {
+    member cursor // Blink only as of 2025-04
+    member logicalSurface // Blink only as of 2025-04
+    member restrictOwnAudio // Blink only as of 2025-04
+    member suppressLocalAudioPlayback // Blink only as of 2025-04
+    member screenPixelRatio // Blink only as of 2025-04
+  }
+
+  dictionary MediaTrackSupportedConstraints {
+    member cursor
+    member logicalSurface
+    member restrictOwnAudio
+    member suppressLocalAudioPlayback // Blink only as of 2022-11
+  }
+}
diff --git a/inputfiles/removedTypes.jsonc b/inputfiles/removedTypes.jsonc
index e61a08339..7ca4afb26 100644
--- a/inputfiles/removedTypes.jsonc
+++ b/inputfiles/removedTypes.jsonc
@@ -435,153 +435,6 @@
                     }
                 }
             },
-            "MediaTrackCapabilities": {
-                "members": {
-                    "member": {
-                        // Gecko: Unsupported
-                        // WebKit: https://searchfox.org/wubkat/source/Source/WebCore/Modules/mediastream/MediaStreamTrack.idl
-                        // Blink: https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/modules/mediastream/media_track_capabilities.idl
-                        "latency": null, // Blink only as of 2022-11
-                        "resizeMode": null, // Blink only as of 2022-11
-
-                        // Screen Share extensions
-                        // https://w3c.github.io/mediacapture-screen-share/#mediadevices-additions
-                        "cursor": null,
-                        "logicalSurface": null,
-
-                        // Image Capture extensions which is Blink only as of 2022-11
-                        // https://w3c.github.io/mediacapture-image/#mediatrackcapabilities-section
-                        "whiteBalanceMode": null,
-                        "exposureMode": null,
-                        "focusMode": null,
-                        "exposureCompensation": null,
-                        "exposureTime": null,
-                        "colorTemperature": null,
-                        "iso": null,
-                        "brightness": null,
-                        "contrast": null,
-                        "saturation": null,
-                        "sharpness": null,
-                        "focusDistance": null,
-                        "pan": null,
-                        "tilt": null,
-                        "zoom": null,
-                        "torch": null
-                    }
-                }
-            },
-            "MediaTrackConstraintSet": {
-                "members": {
-                    "member": {
-                        // Gecko: https://searchfox.org/mozilla-central/source/dom/webidl/MediaStreamTrack.webidl
-                        // WebKit: https://searchfox.org/wubkat/source/Source/WebCore/Modules/mediastream/MediaTrackConstraints.idl#28
-                        // Blink: https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/modules/mediastream/media_track_constraint_set.idl
-                        "latency": null, // Blink only as of 2022-11
-                        "resizeMode": null, // Blink only as of 2022-11
-
-                        // Screen Share extensions
-                        // https://w3c.github.io/mediacapture-screen-share/#mediadevices-additions
-                        "cursor": null,
-                        "logicalSurface": null,
-                        "restrictOwnAudio": null,
-                        "suppressLocalAudioPlayback": null,
-
-                        // Image Capture extensions which is Blink only as of 2022-11
-                        // https://w3c.github.io/mediacapture-image/#mediatrackcapabilities-section
-                        "whiteBalanceMode": null,
-                        "exposureMode": null,
-                        "focusMode": null,
-                        "pointsOfInterest": null,
-                        "exposureCompensation": null,
-                        "exposureTime": null,
-                        "colorTemperature": null,
-                        "iso": null,
-                        "brightness": null,
-                        "contrast": null,
-                        "saturation": null,
-                        "sharpness": null,
-                        "focusDistance": null,
-                        "pan": null,
-                        "tilt": null,
-                        "zoom": null,
-                        "torch": null
-                    }
-                }
-            },
-            "MediaTrackSettings": {
-                "members": {
-                    "member": {
-                        // Gecko: https://searchfox.org/mozilla-central/source/dom/webidl/MediaTrackSettings.webidl
-                        // WebKit: https://searchfox.org/wubkat/source/Source/WebCore/Modules/mediastream/MediaStreamTrack.idl
-                        // Blink: https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/modules/mediastream/media_track_settings.idl
-                        "latency": null, // Blink only as of 2025-04
-                        "resizeMode": null, // Blink only as of 2025-04
-
-                        // Screen Share extensions
-                        // https://w3c.github.io/mediacapture-screen-share/#mediadevices-additions
-                        "cursor": null, // Blink only as of 2025-04
-                        "logicalSurface": null, // Blink only as of 2025-04
-                        "restrictOwnAudio": null, // Blink only as of 2025-04
-                        "suppressLocalAudioPlayback": null, // Blink only as of 2025-04s
-                        "screenPixelRatio": null, // Blink only as of 2025-04
-
-                        // Image Capture extensions which are Blink only as of 2025-04
-                        // https://w3c.github.io/mediacapture-image/#mediatrackcapabilities-section
-                        "exposureMode": null,
-                        "focusMode": null,
-                        "pointsOfInterest": null,
-                        "exposureCompensation": null,
-                        "exposureTime": null,
-                        "colorTemperature": null,
-                        "iso": null,
-                        "brightness": null,
-                        "contrast": null,
-                        "saturation": null,
-                        "sharpness": null,
-                        "focusDistance": null,
-                        "pan": null,
-                        "tilt": null
-                    }
-                }
-            },
-            "MediaTrackSupportedConstraints": {
-                "members": {
-                    "member": {
-                        // Gecko: https://searchfox.org/mozilla-central/source/dom/webidl/MediaTrackSupportedConstraints.webidl
-                        // WebKit: https://searchfox.org/wubkat/source/Source/WebCore/Modules/mediastream/MediaTrackSupportedConstraints.idl
-                        // Blink: https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/modules/mediastream/media_track_supported_constraints.idl
-                        "latency": null,
-                        "resizeMode": null,
-
-                        // Screen Share extensions
-                        // https://w3c.github.io/mediacapture-screen-share/#mediadevices-additions
-                        "cursor": null,
-                        "logicalSurface": null,
-                        "restrictOwnAudio": null,
-                        "suppressLocalAudioPlayback": null, // Blink only as of 2022-11
-
-                        // Image Capture extensions which are Blink only as of 2022-11
-                        // https://w3c.github.io/mediacapture-image/#mediatrackcapabilities-section
-                        "whiteBalanceMode": null,
-                        "exposureMode": null,
-                        "focusMode": null,
-                        "pointsOfInterest": null,
-                        "exposureCompensation": null,
-                        "exposureTime": null,
-                        "colorTemperature": null,
-                        "iso": null,
-                        "brightness": null,
-                        "contrast": null,
-                        "saturation": null,
-                        "sharpness": null,
-                        "focusDistance": null,
-                        "pan": null,
-                        "tilt": null,
-                        "zoom": null,
-                        "torch": null
-                    }
-                }
-            },
             "NotificationOptions": {
                 "members": {
                     "member": {
diff --git a/src/build/patches.ts b/src/build/patches.ts
index f8a07b343..05632f318 100644
--- a/src/build/patches.ts
+++ b/src/build/patches.ts
@@ -111,7 +111,7 @@ function convertKDLNodes(nodes: Node[]): DeepPartial<WebIdl> {
         interfaces[name] = handleMixinAndInterfaces(node, "interface");
         break;
       case "dictionary":
-        dictionary[name] = handleDictionary(node);
+        dictionary[name] = merge(dictionary[name], handleDictionary(node));
         break;
       default:
         throw new Error(`Unknown node name: ${node.name}`);