diff --git a/packages/wxt/e2e/tests/zip.test.ts b/packages/wxt/e2e/tests/zip.test.ts
index 5645db60c..713ad68ab 100644
--- a/packages/wxt/e2e/tests/zip.test.ts
+++ b/packages/wxt/e2e/tests/zip.test.ts
@@ -178,4 +178,73 @@ describe('Zipping', () => {
       true,
     );
   });
+
+  it.each(['firefox', 'opera'])(
+    'should create sources zip for "%s" browser when sourcesZip is undefined',
+    async (browser) => {
+      const project = new TestProject({
+        name: 'test',
+        version: '1.0.0',
+      });
+      project.addFile(
+        'entrypoints/background.ts',
+        'export default defineBackground(() => {});',
+      );
+      const sourcesZip = project.resolvePath('.output/test-1.0.0-sources.zip');
+
+      await project.zip({
+        browser,
+      });
+
+      expect(await project.fileExists(sourcesZip)).toBe(true);
+    },
+  );
+
+  it.each(['firefox', 'chrome'])(
+    'should create sources zip for "%s" when sourcesZip is true',
+    async (browser) => {
+      const project = new TestProject({
+        name: 'test',
+        version: '1.0.0',
+      });
+      project.addFile(
+        'entrypoints/background.ts',
+        'export default defineBackground(() => {});',
+      );
+      const sourcesZip = project.resolvePath('.output/test-1.0.0-sources.zip');
+
+      await project.zip({
+        browser,
+        zip: {
+          zipSources: true,
+        },
+      });
+
+      expect(await project.fileExists(sourcesZip)).toBe(true);
+    },
+  );
+
+  it.each(['firefox', 'chrome'])(
+    'should not create sources zip for "%s" when sourcesZip is false',
+    async (browser) => {
+      const project = new TestProject({
+        name: 'test',
+        version: '1.0.0',
+      });
+      project.addFile(
+        'entrypoints/background.ts',
+        'export default defineBackground(() => {});',
+      );
+      const sourcesZip = project.resolvePath('.output/test-1.0.0-sources.zip');
+
+      await project.zip({
+        browser,
+        zip: {
+          zipSources: false,
+        },
+      });
+
+      expect(await project.fileExists(sourcesZip)).toBe(false);
+    },
+  );
 });
diff --git a/packages/wxt/src/cli/__tests__/index.test.ts b/packages/wxt/src/cli/__tests__/index.test.ts
index 6419163b9..074934338 100644
--- a/packages/wxt/src/cli/__tests__/index.test.ts
+++ b/packages/wxt/src/cli/__tests__/index.test.ts
@@ -237,7 +237,9 @@ describe('CLI', () => {
       mockArgv('zip');
       await importCli();
 
-      expect(zipMock).toBeCalledWith({});
+      expect(zipMock).toBeCalledWith({
+        zip: {},
+      });
     });
 
     it('should respect passing a custom root', async () => {
@@ -246,6 +248,7 @@ describe('CLI', () => {
 
       expect(zipMock).toBeCalledWith({
         root: 'path/to/root',
+        zip: {},
       });
     });
 
@@ -255,6 +258,7 @@ describe('CLI', () => {
 
       expect(zipMock).toBeCalledWith({
         configFile: './path/to/config.ts',
+        zip: {},
       });
     });
 
@@ -264,6 +268,7 @@ describe('CLI', () => {
 
       expect(zipMock).toBeCalledWith({
         mode: 'development',
+        zip: {},
       });
     });
 
@@ -273,6 +278,7 @@ describe('CLI', () => {
 
       expect(zipMock).toBeCalledWith({
         browser: 'firefox',
+        zip: {},
       });
     });
 
@@ -282,6 +288,7 @@ describe('CLI', () => {
 
       expect(zipMock).toBeCalledWith({
         manifestVersion: 2,
+        zip: {},
       });
     });
 
@@ -291,6 +298,7 @@ describe('CLI', () => {
 
       expect(zipMock).toBeCalledWith({
         manifestVersion: 3,
+        zip: {},
       });
     });
 
@@ -300,6 +308,40 @@ describe('CLI', () => {
 
       expect(zipMock).toBeCalledWith({
         debug: true,
+        zip: {},
+      });
+    });
+
+    it('should pass undefined for zipSources when --sources is not passed', async () => {
+      mockArgv('zip');
+      await importCli();
+
+      expect(zipMock).toBeCalledWith({
+        zip: {
+          zipSources: undefined,
+        },
+      });
+    });
+
+    it('should pass true for zipSources when --sources is passed', async () => {
+      mockArgv('zip', '--sources');
+      await importCli();
+
+      expect(zipMock).toBeCalledWith({
+        zip: {
+          zipSources: true,
+        },
+      });
+    });
+
+    it('should pass false for zipSources when --sources=false is passed', async () => {
+      mockArgv('zip', '--sources=false');
+      await importCli();
+
+      expect(zipMock).toBeCalledWith({
+        zip: {
+          zipSources: false,
+        },
       });
     });
   });
diff --git a/packages/wxt/src/cli/commands.ts b/packages/wxt/src/cli/commands.ts
index 75b02947d..a6159881a 100644
--- a/packages/wxt/src/cli/commands.ts
+++ b/packages/wxt/src/cli/commands.ts
@@ -95,6 +95,7 @@ cli
   .option('-b, --browser <browser>', 'specify a browser')
   .option('--mv3', 'target manifest v3')
   .option('--mv2', 'target manifest v2')
+  .option('--sources', 'always create sources zip')
   .action(
     wrapAction(async (root, flags) => {
       await zip({
@@ -104,6 +105,9 @@ cli
         manifestVersion: flags.mv3 ? 3 : flags.mv2 ? 2 : undefined,
         configFile: flags.config,
         debug: flags.debug,
+        zip: {
+          zipSources: flags.sources,
+        },
       });
     }),
   );
diff --git a/packages/wxt/src/core/resolve-config.ts b/packages/wxt/src/core/resolve-config.ts
index b851ba25d..8269179ca 100644
--- a/packages/wxt/src/core/resolve-config.ts
+++ b/packages/wxt/src/core/resolve-config.ts
@@ -179,7 +179,7 @@ export async function resolveConfig(
     srcDir,
     typesDir,
     wxtDir,
-    zip: resolveZipConfig(root, outBaseDir, mergedConfig),
+    zip: resolveZipConfig(root, browser, outBaseDir, mergedConfig),
     transformManifest: mergedConfig.transformManifest,
     analysis: resolveAnalysisConfig(root, mergedConfig),
     userConfigMetadata: userConfigMetadata ?? {},
@@ -258,6 +258,7 @@ async function mergeInlineConfig(
 
 function resolveZipConfig(
   root: string,
+  browser: string,
   outBaseDir: string,
   mergedConfig: InlineConfig,
 ): NullablyRequired<ResolvedConfig['zip']> {
@@ -270,6 +271,8 @@ function resolveZipConfig(
     includeSources: [],
     compressionLevel: 9,
     ...mergedConfig.zip,
+    zipSources:
+      mergedConfig.zip?.zipSources ?? ['firefox', 'opera'].includes(browser),
     exclude: mergedConfig.zip?.exclude ?? [],
     excludeSources: [
       '**/node_modules',
diff --git a/packages/wxt/src/core/utils/testing/fake-objects.ts b/packages/wxt/src/core/utils/testing/fake-objects.ts
index 08844529d..c097aeab7 100644
--- a/packages/wxt/src/core/utils/testing/fake-objects.ts
+++ b/packages/wxt/src/core/utils/testing/fake-objects.ts
@@ -293,6 +293,7 @@ export const fakeResolvedConfig = fakeObjectCreator<ResolvedConfig>(() => {
       downloadedPackagesDir: fakeDir(),
       downloadPackages: [],
       compressionLevel: 9,
+      zipSources: false,
     },
     transformManifest: () => {},
     userConfigMetadata: {},
diff --git a/packages/wxt/src/core/zip.ts b/packages/wxt/src/core/zip.ts
index bd9cdd209..de7b17b6f 100644
--- a/packages/wxt/src/core/zip.ts
+++ b/packages/wxt/src/core/zip.ts
@@ -52,8 +52,7 @@ export async function zip(config?: InlineConfig): Promise<string[]> {
   zipFiles.push(outZipPath);
   await wxt.hooks.callHook('zip:extension:done', wxt, outZipPath);
 
-  // ZIP sources for Firefox
-  if (wxt.config.browser === 'firefox') {
+  if (wxt.config.zip.zipSources) {
     await wxt.hooks.callHook('zip:sources:start', wxt);
     const { overrides, files: downloadedPackages } =
       await downloadPrivatePackages();
diff --git a/packages/wxt/src/types.ts b/packages/wxt/src/types.ts
index d556143e9..445f04476 100644
--- a/packages/wxt/src/types.ts
+++ b/packages/wxt/src/types.ts
@@ -130,6 +130,16 @@ export interface InlineConfig {
      * @default "{{name}}-{{version}}-{{browser}}.zip"
      */
     artifactTemplate?: string;
+    /**
+     * When zipping the extension, also zip sources.
+     *
+     * - `undefined`: zip sources if the target browser is "firefox" or "opera"
+     * - `true`: always zip sources
+     * - `false`: never zip sources
+     *
+     * @default undefined
+     */
+    zipSources?: boolean;
     /**
      * Configure the filename output when zipping files.
      *
@@ -1285,6 +1295,10 @@ export interface ResolvedConfig {
     downloadPackages: string[];
     compressionLevel: 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9;
     exclude: string[];
+    /**
+     * If true, when zipping the extension, also zip the sources.
+     */
+    zipSources: boolean;
   };
   /**
    * @deprecated Use `build:manifestGenerated` hook instead.