diff --git a/package.json b/package.json
index 0f18671..7110c19 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,9 @@
     "build-chrome": "cross-env NODE_ENV=production BROWSER=chrome webpack --hide-modules",
     "build-edge": "cross-env NODE_ENV=production BROWSER=edge webpack --hide-modules",
     "build:dev": "cross-env NODE_ENV=development BROWSER=firefox webpack --hide-modules",
+    "build-testing": "cross-env NODE_ENV=development BROWSER=firefox CHANNEL=testing webpack --hide-modules",
     "build-nightly": "cross-env NODE_ENV=development BROWSER=firefox CHANNEL=nightly webpack --hide-modules",
+    "build-testing-chrome": "cross-env NODE_ENV=development BROWSER=chrome CHANNEL=testing webpack --hide-modules",
     "build-nightly-chrome": "cross-env NODE_ENV=development BROWSER=chrome CHANNEL=nightly webpack --hide-modules",
     "build-chrome:dev": "cross-env NODE_ENV=development BROWSER=chrome webpack --hide-modules",
     "build-edge:dev": "cross-env NODE_ENV=development BROWSER=edge webpack --hide-modules",
diff --git a/scripts/build-crx.sh b/scripts/build-crx.sh
index 2b299a7..17ae75a 100755
--- a/scripts/build-crx.sh
+++ b/scripts/build-crx.sh
@@ -15,7 +15,7 @@ cd ./dist-zip
 zip=`ls | grep chrome.zip`
 name="${zip%.*}"
 crx="$name.crx"
-key="../keys/chrome-nightly.pem"
+key="../keys/chrome-nightly.pem"             # this is also good for testing build
 pub="$name.pub"
 sig="$name.sig"
 trap 'rm -f "$pub" "$sig" "$zip"' EXIT
diff --git a/webpack.config.js b/webpack.config.js
index 474304c..8a92001 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -98,6 +98,22 @@ const config = {
                                     }.${process.env.BUILD_NUMBER}`;
             jsonContent.browser_action.default_title = "Ultrawidify Nightly";
             
+            // otherwise things will get fun!
+            delete jsonContent.applications;
+          } else if (process.env.CHANNEL === 'testing') {
+            jsonContent.name = "Ultrawidify - testing";
+            jsonContent.description = "FOR TESTING ONLY -- this build is intended for testing a fix of certain bugs. It's not fit for normal use.";
+
+            // version numbers for nightly builds: YYMM.DD.BUILD_NUMBER
+            jsonContent.version = `${new Date()
+                                            .toISOString()     // YYYY-MM-DDTHH:MM:SS...
+                                            .split('T')[0]     // gives YYYY-MM-DD
+                                            .substr(2)         // YYYY -> YY
+                                            .replace('-', '')  // YY-MM-DD -> YYMM-DD
+                                            .replace('-', '.') // YYMM-DD -> YYMM.DD
+                                    }.${process.env.BUILD_NUMBER}`;
+            jsonContent.browser_action.default_title = "Ultrawidify Testing";
+            
             // otherwise things will get fun!
             delete jsonContent.applications;
           }