diff --git a/packages/browser/scripts/checkbrowsers.js b/packages/browser/scripts/checkbrowsers.js
index 9e6481485d79..a32dcd4fff8b 100644
--- a/packages/browser/scripts/checkbrowsers.js
+++ b/packages/browser/scripts/checkbrowsers.js
@@ -102,7 +102,9 @@ const checkLocalConfigsVsBrowserStack = (localConfigs, bsConfigs) => {
     }
     console.log(
       '\nPlease visit https://api.browserstack.com/5/browsers or https://api.browserstack.com/5/browsers?flat=true to choose new configurations.',
+      "\n\n(If you're sure one of the reported browsers is supported, check to make sure the local config contains all keys (even if they have a null value) and that the values match exactly the ones given by the API.)\n",
     );
+    process.exit(-1);
   } else {
     console.log('\nAll configurations supported!\n');
   }
@@ -119,9 +121,14 @@ const checkLocalConfigsVsBrowserStack = (localConfigs, bsConfigs) => {
 const findUnsupportedConfigs = localConfigs => {
   if (!hasCreds()) {
     console.warn(
-      'Unable to find API credentials in env. Please export them as BROWSERSTACK_USERNAME and BROWSERSTACK_ACCESS_KEY.',
+      'Unable to find API credentials in env. Please export them as BROWSERSTACK_USERNAME and BROWSERSTACK_ACCESS_KEY.\n',
     );
-    return;
+    process.exit(-1);
+  }
+
+  if (!localConfigs) {
+    console.warn('Unable to load local browser configurations.\n');
+    process.exit(-1);
   }
 
   fetchCurrentData(browserstackUsername, browserstackAccessKey)
diff --git a/packages/browser/test/integration/suites/loader-specific.js b/packages/browser/test/integration/suites/loader-specific.js
index b6382151aaba..145fcd6e1dff 100644
--- a/packages/browser/test/integration/suites/loader-specific.js
+++ b/packages/browser/test/integration/suites/loader-specific.js
@@ -6,7 +6,7 @@ var loaderVariants = [
 for (var idx in loaderVariants) {
   (function() {
     describe(loaderVariants[idx], function() {
-      this.timeout(5000);
+      this.timeout(60000);
       this.retries(3);
 
       var sandbox;
diff --git a/packages/browser/test/integration/suites/shell.js b/packages/browser/test/integration/suites/shell.js
index b0ce68e60d81..089aaca8848f 100644
--- a/packages/browser/test/integration/suites/shell.js
+++ b/packages/browser/test/integration/suites/shell.js
@@ -6,7 +6,7 @@ function runVariant(variant) {
   var IS_SYNC_LOADER = !!variant.match(/^loader-lazy-no$/);
 
   describe(variant, function() {
-    this.timeout(5000);
+    this.timeout(60000);
     this.retries(3);
 
     var sandbox;
diff --git a/packages/core/src/baseclient.ts b/packages/core/src/baseclient.ts
index 52c853fe559c..5b48161a52ef 100644
--- a/packages/core/src/baseclient.ts
+++ b/packages/core/src/baseclient.ts
@@ -429,7 +429,7 @@ export abstract class BaseClient<B extends Backend, O extends Options> implement
             originalException: reason as Error,
           });
           reject(
-            `Event processing pipeline threw an error, original event will not be sent. Details has been sent as a new event.\nReason: ${reason}`,
+            `Event processing pipeline threw an error, original event will not be sent. Details have been sent as a new event.\nReason: ${reason}`,
           );
         });
     });
diff --git a/scripts/browser-integration.sh b/scripts/browser-integration.sh
index 9616fb0228f5..c5da93fa1041 100755
--- a/scripts/browser-integration.sh
+++ b/scripts/browser-integration.sh
@@ -5,6 +5,6 @@ yarn
 # We have to build other packages first, as we use absolute packages import in TypeScript
 yarn build
 cd packages/browser
+yarn test:integration:checkbrowsers
 yarn test:integration
 yarn test:package
-