diff --git a/components/legacy/extension-data/extension-data-list.ts b/components/legacy/extension-data/extension-data-list.ts
index 2bf1e98be974..d3f06daf96a6 100644
--- a/components/legacy/extension-data/extension-data-list.ts
+++ b/components/legacy/extension-data/extension-data-list.ts
@@ -98,6 +98,12 @@ export class ExtensionDataList extends Array<ExtensionDataEntry> {
     });
   }
 
+  filterIgnoredFromSpecificExtensions(): ExtensionDataList {
+    return this.filter((entry) => {
+      return !entry.isIgnoredFromSpecific;
+    });
+  }
+
   toConfigObject() {
     const res = {};
     this.forEach((entry) => {
diff --git a/components/legacy/extension-data/extension-data.ts b/components/legacy/extension-data/extension-data.ts
index 3d4d63750e9a..c1c33a30892c 100644
--- a/components/legacy/extension-data/extension-data.ts
+++ b/components/legacy/extension-data/extension-data.ts
@@ -1,10 +1,13 @@
-import { cloneDeep } from 'lodash';
+import { cloneDeep, isObject } from 'lodash';
 import { ComponentID } from '@teambit/component-id';
 
-type ExtensionConfig = { [extName: string]: any } | RemoveExtensionSpecialSign;
+type ExtensionConfig = { [extName: string]: any } | RemoveExtensionSpecialSign | IgnoreFromSpecificSpecialSign;
 
 export const REMOVE_EXTENSION_SPECIAL_SIGN = '-';
+export const IGNORE_FROM_SPECIFIC_SPECIAL_SIGN = '--';
+
 type RemoveExtensionSpecialSign = '-';
+type IgnoreFromSpecificSpecialSign = '--';
 
 export class ExtensionDataEntry {
   constructor(
@@ -33,7 +36,7 @@ export class ExtensionDataEntry {
     return '';
   }
 
-  get config(): { [key: string]: any } {
+  get config(): { [key: string]: any } | string {
     if (this.rawConfig === REMOVE_EXTENSION_SPECIAL_SIGN) return {};
     return this.rawConfig;
   }
@@ -43,7 +46,7 @@ export class ExtensionDataEntry {
   }
 
   get isLegacy(): boolean {
-    if (this.config?.__legacy) return true;
+    if (isObject(this.config) && this.config?.__legacy) return true;
     return false;
   }
 
@@ -51,6 +54,10 @@ export class ExtensionDataEntry {
     return this.rawConfig === REMOVE_EXTENSION_SPECIAL_SIGN;
   }
 
+  get isIgnoredFromSpecific(): boolean {
+    return this.rawConfig === IGNORE_FROM_SPECIFIC_SPECIAL_SIGN;
+  }
+
   toModelObject() {
     const extensionId =
       this.extensionId && this.extensionId.serialize ? this.extensionId.serialize() : this.extensionId;
diff --git a/components/legacy/extension-data/index.ts b/components/legacy/extension-data/index.ts
index e2b3410b6279..febc05c1cb90 100644
--- a/components/legacy/extension-data/index.ts
+++ b/components/legacy/extension-data/index.ts
@@ -1,4 +1,4 @@
-export { ExtensionDataEntry, REMOVE_EXTENSION_SPECIAL_SIGN } from './extension-data';
+export { ExtensionDataEntry, REMOVE_EXTENSION_SPECIAL_SIGN, IGNORE_FROM_SPECIFIC_SPECIAL_SIGN } from './extension-data';
 export {
   ExtensionDataList,
   removeInternalConfigFields,
diff --git a/scopes/workspace/workspace/aspects-merger.ts b/scopes/workspace/workspace/aspects-merger.ts
index 169f02d8c9df..c7c881f2cae1 100644
--- a/scopes/workspace/workspace/aspects-merger.ts
+++ b/scopes/workspace/workspace/aspects-merger.ts
@@ -5,7 +5,7 @@ import { ComponentID } from '@teambit/component-id';
 import { EnvsAspect } from '@teambit/envs';
 import { DependencyResolverAspect } from '@teambit/dependency-resolver';
 import { ExtensionDataList, getCompareExtPredicate } from '@teambit/legacy.extension-data';
-import { partition, mergeWith, merge, uniq, uniqWith, compact } from 'lodash';
+import { partition, mergeWith, merge, uniq, uniqWith, compact, isObject } from 'lodash';
 import { MergeConfigConflict } from './exceptions/merge-config-conflict';
 import { AspectSpecificField, ExtensionsOrigin, Workspace } from './workspace';
 import { MergeConflictFile } from './merge-conflict-file';
@@ -120,13 +120,25 @@ export class AspectsMerger {
     const extensionsToMerge: Array<{ origin: ExtensionsOrigin; extensions: ExtensionDataList; extraData: any }> = [];
     let envWasFoundPreviously = false;
     const removedExtensionIds: string[] = [];
+    const ignoredFromSpecificsExtensionIds: string[] = [];
 
     const addExtensionsToMerge = async (extensions: ExtensionDataList, origin: ExtensionsOrigin, extraData?: any) => {
       if (!extensions.length) {
         return;
       }
+
+      const isSpecific = ['BitmapFile', 'ModelSpecific', 'ComponentJsonFile'].includes(origin);
+
       removedExtensionIds.push(...extensions.filter((extData) => extData.isRemoved).map((extData) => extData.stringId));
-      const extsWithoutRemoved = extensions.filterRemovedExtensions();
+      let extsWithoutIgnored = extensions;
+      if (isSpecific) {
+        ignoredFromSpecificsExtensionIds.push(
+          ...extensions.filter((extData) => extData.isIgnoredFromSpecific).map((extData) => extData.stringId)
+        );
+        extsWithoutIgnored = extensions.filter((ext) => !ignoredFromSpecificsExtensionIds.includes(ext.stringId));
+      }
+
+      const extsWithoutRemoved = extsWithoutIgnored.filterRemovedExtensions();
       const selfInMergedExtensions = extsWithoutRemoved.findExtension(componentId.toStringWithoutVersion(), true);
       const extsWithoutSelf = selfInMergedExtensions?.extensionId
         ? extsWithoutRemoved.remove(selfInMergedExtensions.extensionId)
@@ -149,7 +161,11 @@ export class AspectsMerger {
       extensionsToMerge.push({ origin, extensions: extensionDataListFiltered, extraData });
     };
     const setDataListAsSpecific = (extensions: ExtensionDataList) => {
-      extensions.forEach((dataEntry) => (dataEntry.config[AspectSpecificField] = true));
+      extensions.forEach((dataEntry) => {
+        if (isObject(dataEntry.config)) {
+          dataEntry.config[AspectSpecificField] = true;
+        }
+      });
     };
     if (bitMapExtensions && !excludeOrigins.includes('BitmapFile')) {
       const extensionDataList = ExtensionDataList.fromConfigObject(bitMapExtensions);