Revert "disable firefox smoke tests so we can fix flakiness out of band"

This reverts commit fe38642.

Author: spalger

Jenkinsfile

@@ -14,11 +14,11 @@ stage("Kibana Pipeline") { // This stage is just here to help the BlueOcean UI a
               'kibana-intake-agent': kibanaPipeline.intakeWorker('kibana-intake', './test/scripts/jenkins_unit.sh'),
               'x-pack-intake-agent': kibanaPipeline.intakeWorker('x-pack-intake', './test/scripts/jenkins_xpack.sh'),
               'kibana-oss-agent': kibanaPipeline.withWorkers('kibana-oss-tests', { kibanaPipeline.buildOss() }, [
-                // 'oss-firefoxSmoke': kibanaPipeline.getPostBuildWorker('firefoxSmoke', {
-                //   retryable('kibana-firefoxSmoke') {
-                //     runbld('./test/scripts/jenkins_firefox_smoke.sh', 'Execute kibana-firefoxSmoke')
-                //   }
-                // }),
+                'oss-firefoxSmoke': kibanaPipeline.getPostBuildWorker('firefoxSmoke', {
+                  retryable('kibana-firefoxSmoke') {
+                    runbld('./test/scripts/jenkins_firefox_smoke.sh', 'Execute kibana-firefoxSmoke')
+                  }
+                }),
                 'oss-ciGroup1': kibanaPipeline.getOssCiGroupWorker(1),
                 'oss-ciGroup2': kibanaPipeline.getOssCiGroupWorker(2),
                 'oss-ciGroup3': kibanaPipeline.getOssCiGroupWorker(3),
@@ -39,11 +39,11 @@ stage("Kibana Pipeline") { // This stage is just here to help the BlueOcean UI a
                 // 'oss-visualRegression': kibanaPipeline.getPostBuildWorker('visualRegression', { runbld('./test/scripts/jenkins_visual_regression.sh', 'Execute kibana-visualRegression') }),
               ]),
               'kibana-xpack-agent': kibanaPipeline.withWorkers('kibana-xpack-tests', { kibanaPipeline.buildXpack() }, [
-                // 'xpack-firefoxSmoke': kibanaPipeline.getPostBuildWorker('xpack-firefoxSmoke', {
-                //   retryable('xpack-firefoxSmoke') {
-                //     runbld('./test/scripts/jenkins_xpack_firefox_smoke.sh', 'Execute xpack-firefoxSmoke')
-                //   }
-                // }),
+                'xpack-firefoxSmoke': kibanaPipeline.getPostBuildWorker('xpack-firefoxSmoke', {
+                  retryable('xpack-firefoxSmoke') {
+                    runbld('./test/scripts/jenkins_xpack_firefox_smoke.sh', 'Execute xpack-firefoxSmoke')
+                  }
+                }),
                 'xpack-ciGroup1': kibanaPipeline.getXpackCiGroupWorker(1),
                 'xpack-ciGroup2': kibanaPipeline.getXpackCiGroupWorker(2),
                 'xpack-ciGroup3': kibanaPipeline.getXpackCiGroupWorker(3),