diff --git a/karma.conf.js b/karma.conf.js
index 1122f2c07..9fe317624 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -3,12 +3,7 @@ const config = {
   frameworks: [ "qunit" ],
   files: [
     { pattern: "dist/test.js", watched: false },
-    {
-      pattern: "src/test_helpers/fixtures/*.png",
-      watched: false,
-      included: false,
-      served: true
-    }
+    { pattern: "src/test_helpers/fixtures/*.png", watched: false, included: false, served: true }
   ],
   proxies: {
     "/test_helpers/fixtures/": "/base/src/test_helpers/fixtures/"
@@ -29,73 +24,67 @@ const config = {
   captureTimeout: 240000,
   browserDisconnectTimeout: 240000,
   browserDisconnectTolerance: 3,
-  browserNoActivityTimeout: 300000
+  browserNoActivityTimeout: 300000,
 }
 
-/* eslint camelcase: "off" */
+/* eslint camelcase: "off",  */
 
 if (process.env.SAUCE_ACCESS_KEY) {
   config.customLaunchers = {
     sl_chrome_latest: {
       base: "SauceLabs",
       browserName: "chrome",
-      browserVersion: "latest",
-      "sauce:options": {}
+      version: "latest"
     },
     sl_chrome_latest_i8n: {
       base: "SauceLabs",
       browserName: "chrome",
-      browserVersion: "latest",
-      "goog:chromeOptions": {
+      version: "latest",
+      chromeOptions: {
         args: [ "--lang=tr" ]
-      },
-      "sauce:options": {}
+      }
     },
+    // Context:
+    // https://github.com/karma-runner/karma-sauce-launcher/issues/275
+    // https://saucelabs.com/blog/update-firefox-tests-before-oct-4-2022
     sl_firefox_latest: {
       base: "SauceLabs",
       browserName: "firefox",
       browserVersion: "latest",
-      "moz:debuggerAddress": true,
-      "sauce:options": {}
+      "moz:debuggerAddress": true
     },
-    sl_safari_16_4: {
+    sl_safari_12_1: {
       base: "SauceLabs",
       browserName: "safari",
-      platformName: "macOS 10.13",
-      browserVersion: "16.4",
-      "sauce:options": {}
+      platform: "macOS 10.13",
+      version: "12.1"
     },
     sl_edge_latest: {
       base: "SauceLabs",
-      browserName: "MicrosoftEdge",
-      platformName: "Windows 10",
-      browserVersion: "latest",
-      "sauce:options": {}
+      browserName: "microsoftedge",
+      platform: "Windows 10",
+      version: "latest"
     },
     sl_ios_latest: {
       base: "SauceLabs",
-      platformName: "iOS",
-      browserName: "Safari",
-      deviceName: "iPhone 15 Simulator",
-      platformVersion: "17.0",
-      automationName: "XCUITest",
-      "sauce:options": {}
+      browserName: "safari",
+      platform: "ios",
+      device: "iPhone X Simulator",
+      version: "13.0"
     },
     sl_android_9: {
       base: "SauceLabs",
-      platformName: "Android",
-      browserName: "Chrome",
-      deviceName: "Android GoogleAPI Emulator",
-      platformVersion: "9.0",
-      "sauce:options": {}
+      browserName: "chrome",
+      platform: "android",
+      device: "Android GoogleAPI Emulator",
+      version: "9.0"
     },
     sl_android_latest: {
       base: "SauceLabs",
-      platformName: "Android",
-      browserName: "Chrome",
-      deviceName: "Android GoogleAPI Emulator",
-      platformVersion: "12.0",
-      "sauce:options": {}
+      browserName: "chrome",
+      platform: "android",
+      device: "Android GoogleAPI Emulator",
+      version: "12.0"
     }
   }
 
@@ -108,7 +97,7 @@ if (process.env.SAUCE_ACCESS_KEY) {
     idleTimeout: 600,
     commandTimeout: 600,
     maxDuration: 900,
-    build: buildId()
+    build: buildId(),
   }
 }
 
@@ -119,6 +108,6 @@ function buildId() {
     : ""
 }
 
-module.exports = function (karmaConfig) {
+module.exports = function(karmaConfig) {
   karmaConfig.set(config)
 }