diff --git a/config/karma/config-expectation-firefox-penultimate.js b/config/karma/config-expectation-firefox-penultimate.js
index 3e01c2d0..2d0a83be 100644
--- a/config/karma/config-expectation-firefox-penultimate.js
+++ b/config/karma/config-expectation-firefox-penultimate.js
@@ -23,7 +23,7 @@ module.exports = (config) => {
         customLaunchers: {
             penultimateFirefoxHeadless: {
                 base: 'FirefoxHeadless',
-                command: 'firefox-v129/firefox/Firefox.app/Contents/MacOS/firefox'
+                command: 'firefox-v130/firefox/Firefox.app/Contents/MacOS/firefox'
             }
         },
 
diff --git a/config/karma/config-expectation-firefox-previous.js b/config/karma/config-expectation-firefox-previous.js
index eb443bcf..03fdf30c 100644
--- a/config/karma/config-expectation-firefox-previous.js
+++ b/config/karma/config-expectation-firefox-previous.js
@@ -23,7 +23,7 @@ module.exports = (config) => {
         customLaunchers: {
             PreviousFirefoxHeadless: {
                 base: 'FirefoxHeadless',
-                command: 'firefox-v130/firefox/Firefox.app/Contents/MacOS/firefox'
+                command: 'firefox-v131/firefox/Firefox.app/Contents/MacOS/firefox'
             }
         },