diff --git a/internal/resources/extension/framework_delete.go b/internal/resources/extension/framework_delete.go
new file mode 100644
index 0000000..7894a8f
--- /dev/null
+++ b/internal/resources/extension/framework_delete.go
@@ -0,0 +1,17 @@
+package extension
+
+import (
+	"context"
+
+	"github.com/hashicorp/terraform-plugin-framework/resource"
+)
+
+func deleteExtensionResource(ctx context.Context, client extensionDeleter, req resource.DeleteRequest, resp *resource.DeleteResponse) {
+	var state extensionModel
+	resp.Diagnostics.Append(req.State.Get(ctx, &state)...)
+	if resp.Diagnostics.HasError() {
+		return
+	}
+
+	resp.Diagnostics.Append(deleteExtension(ctx, client, state)...)
+}
diff --git a/internal/resources/extension/framework_delete_test.go b/internal/resources/extension/framework_delete_test.go
new file mode 100644
index 0000000..96b79f6
--- /dev/null
+++ b/internal/resources/extension/framework_delete_test.go
@@ -0,0 +1,104 @@
+package extension
+
+import (
+	"context"
+	"net/http"
+	"testing"
+
+	"github.com/hashicorp/terraform-plugin-framework/resource"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	"github.com/hashicorp/terraform-plugin-go/tftypes"
+)
+
+func TestFrameworkDeleteExtensionDelegatesStateIdentityAndScope(t *testing.T) {
+	t.Parallel()
+
+	var gotProjectID, gotID string
+	client := fakeExtensionDeleter{
+		delete: func(ctx context.Context, projectID, id string) error {
+			gotProjectID, gotID = projectID, id
+			return nil
+		},
+	}
+	req := frameworkExtensionDeleteRequest(t, extensionModel{
+		ID:           types.StringValue("extension_123"),
+		Name:         types.StringNull(),
+		ProjectID:    types.StringValue("project_123"),
+		SourcePath:   types.StringNull(),
+		SourceSHA256: types.StringUnknown(),
+	})
+	var resp resource.DeleteResponse
+
+	deleteExtensionResource(context.Background(), client, req, &resp)
+
+	if resp.Diagnostics.HasError() {
+		t.Fatalf("unexpected diagnostics: %v", resp.Diagnostics)
+	}
+	if gotProjectID != "project_123" || gotID != "extension_123" {
+		t.Fatalf("DeleteExtension scope/id = %q/%q, want project_123/extension_123", gotProjectID, gotID)
+	}
+}
+
+func TestFrameworkDeleteExtensionReturnsDependencyDiagnostic(t *testing.T) {
+	t.Parallel()
+
+	client := fakeExtensionDeleter{
+		delete: func(ctx context.Context, projectID, id string) error {
+			return extensionAPIErrorForTest(t, http.StatusBadRequest, `{"code":"resource_in_use"}`)
+		},
+	}
+	req := frameworkExtensionDeleteRequest(t, extensionDeleteStateForTest())
+	var resp resource.DeleteResponse
+
+	deleteExtensionResource(context.Background(), client, req, &resp)
+
+	if !extensionDiagnosticContains(resp.Diagnostics, "Delete Kernel Extension", "browser pool configurations") {
+		t.Fatalf("diagnostics = %v, want durable dependency guidance", resp.Diagnostics)
+	}
+}
+
+func TestFrameworkDeleteExtensionRejectsMalformedStateBeforeCall(t *testing.T) {
+	t.Parallel()
+
+	called := false
+	client := fakeExtensionDeleter{
+		delete: func(ctx context.Context, projectID, id string) error {
+			called = true
+			return nil
+		},
+	}
+	var req resource.DeleteRequest
+	req.State.Schema = extensionSchema()
+	req.State.Raw = tftypes.NewValue(tftypes.String, "not extension state")
+	var resp resource.DeleteResponse
+
+	deleteExtensionResource(context.Background(), client, req, &resp)
+
+	if !resp.Diagnostics.HasError() {
+		t.Fatal("expected malformed-state diagnostic")
+	}
+	if called {
+		t.Fatal("DeleteExtension called for malformed state")
+	}
+}
+
+func frameworkExtensionDeleteRequest(t *testing.T, state extensionModel) resource.DeleteRequest {
+	t.Helper()
+
+	var req resource.DeleteRequest
+	req.State.Schema = extensionSchema()
+	if diags := req.State.Set(context.Background(), state); diags.HasError() {
+		t.Fatalf("set extension delete state: %v", diags)
+	}
+	return req
+}
+
+func extensionDeleteStateForTest() extensionModel {
+	return extensionModel{
+		ID:           types.StringValue("extension_123"),
+		Name:         types.StringNull(),
+		ProjectID:    types.StringNull(),
+		SourcePath:   types.StringNull(),
+		SourceSHA256: types.StringUnknown(),
+	}
+}