diff --git a/.drone.yml b/.drone.yml
index 8a73048..9c291da 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -6,7 +6,7 @@ steps:
   - name: install
     image: node:20-alpine
     commands:
-      - apk add chromium
+      - apk add firefox
       - npm install
       - npm run test:ci
       - npm run e2e
diff --git a/angular.json b/angular.json
index 11fc050..1ac34ad 100644
--- a/angular.json
+++ b/angular.json
@@ -92,7 +92,8 @@
             "styles": [
               "src/styles.scss"
             ],
-            "scripts": []
+            "scripts": [],
+            "karmaConfig": "karma.conf.js"
           }
         }
       }
diff --git a/karma.conf.js b/karma.conf.js
new file mode 100644
index 0000000..bff468e
--- /dev/null
+++ b/karma.conf.js
@@ -0,0 +1,40 @@
+// Karma configuration file, see link for more information
+// https://karma-runner.github.io/1.0/config/configuration-file.html
+
+module.exports = function (config) {
+  config.set({
+    basePath: '',
+    frameworks: ['jasmine', '@angular-devkit/build-angular'],
+    plugins: [
+      require('karma-jasmine'),
+      require('karma-chrome-launcher'),
+      require('karma-firefox-launcher'),
+      require('karma-jasmine-html-reporter'),
+      require('karma-coverage'),
+      require('@angular-devkit/build-angular/plugins/karma')
+    ],
+    client: {
+      jasmine: {
+        // you can add configuration options for Jasmine here
+        // the possible options are listed at https://jasmine.github.io/api/edge/Configuration.html
+        // for example, you can disable the random execution with `random: false`
+        // or set a specific seed with `seed: 4321`
+      },
+      clearContext: false // leave Jasmine Spec Runner output visible in browser
+    },
+    jasmineHtmlReporter: {
+      suppressAll: true // removes the duplicated traces
+    },
+    coverageReporter: {
+      dir: require('path').join(__dirname, './coverage/convertorizr'),
+      subdir: '.',
+      reporters: [
+        { type: 'html' },
+        { type: 'text-summary' }
+      ]
+    },
+    reporters: ['progress', 'kjhtml'],
+    browsers: ['Firefox'],
+    restartOnFileChange: true
+  });
+};
diff --git a/package-lock.json b/package-lock.json
index 058262c..2a94c55 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -37,6 +37,7 @@
         "karma": "~6.4.0",
         "karma-chrome-launcher": "~3.2.0",
         "karma-coverage": "~2.2.0",
+        "karma-firefox-launcher": "^2.1.2",
         "karma-jasmine": "~5.1.0",
         "karma-jasmine-html-reporter": "~2.1.0",
         "typescript": "~5.3.2"
@@ -7434,6 +7435,31 @@
         "node": ">=10.0.0"
       }
     },
+    "node_modules/karma-firefox-launcher": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/karma-firefox-launcher/-/karma-firefox-launcher-2.1.2.tgz",
+      "integrity": "sha512-VV9xDQU1QIboTrjtGVD4NCfzIH7n01ZXqy/qpBhnOeGVOkG5JYPEm8kuSd7psHE6WouZaQ9Ool92g8LFweSNMA==",
+      "dev": true,
+      "dependencies": {
+        "is-wsl": "^2.2.0",
+        "which": "^2.0.1"
+      }
+    },
+    "node_modules/karma-firefox-launcher/node_modules/which": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
+      "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
+      "dev": true,
+      "dependencies": {
+        "isexe": "^2.0.0"
+      },
+      "bin": {
+        "node-which": "bin/node-which"
+      },
+      "engines": {
+        "node": ">= 8"
+      }
+    },
     "node_modules/karma-jasmine": {
       "version": "5.1.0",
       "resolved": "https://registry.npmjs.org/karma-jasmine/-/karma-jasmine-5.1.0.tgz",
diff --git a/package.json b/package.json
index ca88708..75a1dbb 100644
--- a/package.json
+++ b/package.json
@@ -24,8 +24,8 @@
     "start": "ng serve",
     "build": "ng build",
     "watch": "ng build --watch --configuration development",
-    "test": "ng test",
-    "test:ci": "ng test --no-watch --no-progress --browsers=ChromiumHeadless"
+    "test": "ng test --browsers=Chromium,Firefox",
+    "test:ci": "ng test --no-watch --no-progress --browsers=FirefoxHeadless"
   },
   "private": true,
   "dependencies": {
@@ -57,6 +57,7 @@
     "karma": "~6.4.0",
     "karma-chrome-launcher": "~3.2.0",
     "karma-coverage": "~2.2.0",
+    "karma-firefox-launcher": "^2.1.2",
     "karma-jasmine": "~5.1.0",
     "karma-jasmine-html-reporter": "~2.1.0",
     "typescript": "~5.3.2"