diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ba8d27a7f..55f5f4490 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -49,11 +49,19 @@ jobs:
         npm run docs
         npm run typedoc
         npm pack
-    - name: Coveralls Parallel
+    - name: Coveralls Parallel - Chrome
       uses: coverallsapp/github-action@master
       with:
         github-token: ${{ secrets.github_token }}
-        flag-name: run-${{ matrix.os }}
+        path-to-lcov: './coverage/chrome/lcov.info'
+        flag-name: ${{ matrix.os }}-chrome
+        parallel: true
+    - name: Coveralls Parallel - Firefox
+      uses: coverallsapp/github-action@master
+      with:
+        github-token: ${{ secrets.github_token }}
+        path-to-lcov: './coverage/firefox/lcov.info'
+        flag-name: ${{ matrix.os }}-firefox
         parallel: true
 
 
diff --git a/karma.conf.js b/karma.conf.js
index 614df15ab..44e6143a1 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -112,7 +112,7 @@ module.exports = function(karma) {
 			dir: 'coverage/',
 			reporters: [
 				{type: 'html', subdir: 'html'},
-				{type: 'lcovonly', subdir: '.'}
+				{type: 'lcovonly', subdir: (browser) => browser.toLowerCase().split(/[ /-]/)[0]}
 			]
 		};
 	}