diff --git a/package-lock.json b/package-lock.json
index b090261ce..2a29f612d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -29,7 +29,7 @@
 				"karma": "^5.2.3",
 				"karma-chai": "^0.1.0",
 				"karma-chrome-launcher": "^3.1.0",
-				"karma-firefox-launcher": "^1.3.0",
+				"karma-firefox-launcher": "^2.1.1",
 				"karma-mocha": "^2.0.1",
 				"karma-typescript": "^5.2.0",
 				"mocha": "^7.2.0",
@@ -4431,12 +4431,28 @@
 			}
 		},
 		"node_modules/karma-firefox-launcher": {
-			"version": "1.3.0",
-			"resolved": "https://registry.npmjs.org/karma-firefox-launcher/-/karma-firefox-launcher-1.3.0.tgz",
-			"integrity": "sha512-Fi7xPhwrRgr+94BnHX0F5dCl1miIW4RHnzjIGxF8GaIEp7rNqX7LSi7ok63VXs3PS/5MQaQMhGxw+bvD+pibBQ==",
+			"version": "2.1.1",
+			"resolved": "https://registry.npmjs.org/karma-firefox-launcher/-/karma-firefox-launcher-2.1.1.tgz",
+			"integrity": "sha512-VzDMgPseXak9DtfyE1O5bB2BwsMy1zzO1kUxVW1rP0yhC4tDNJ0p3JoFdzvrK4QqVzdqUMa9Rx9YzkdFp8hz3Q==",
 			"dev": true,
 			"dependencies": {
-				"is-wsl": "^2.1.0"
+				"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-mocha": {
@@ -12282,12 +12298,24 @@
 			}
 		},
 		"karma-firefox-launcher": {
-			"version": "1.3.0",
-			"resolved": "https://registry.npmjs.org/karma-firefox-launcher/-/karma-firefox-launcher-1.3.0.tgz",
-			"integrity": "sha512-Fi7xPhwrRgr+94BnHX0F5dCl1miIW4RHnzjIGxF8GaIEp7rNqX7LSi7ok63VXs3PS/5MQaQMhGxw+bvD+pibBQ==",
+			"version": "2.1.1",
+			"resolved": "https://registry.npmjs.org/karma-firefox-launcher/-/karma-firefox-launcher-2.1.1.tgz",
+			"integrity": "sha512-VzDMgPseXak9DtfyE1O5bB2BwsMy1zzO1kUxVW1rP0yhC4tDNJ0p3JoFdzvrK4QqVzdqUMa9Rx9YzkdFp8hz3Q==",
 			"dev": true,
 			"requires": {
-				"is-wsl": "^2.1.0"
+				"is-wsl": "^2.2.0",
+				"which": "^2.0.1"
+			},
+			"dependencies": {
+				"which": {
+					"version": "2.0.2",
+					"resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
+					"integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
+					"dev": true,
+					"requires": {
+						"isexe": "^2.0.0"
+					}
+				}
 			}
 		},
 		"karma-mocha": {
diff --git a/package.json b/package.json
index b24efc326..69127469e 100644
--- a/package.json
+++ b/package.json
@@ -79,7 +79,7 @@
 		"karma": "^5.2.3",
 		"karma-chai": "^0.1.0",
 		"karma-chrome-launcher": "^3.1.0",
-		"karma-firefox-launcher": "^1.3.0",
+		"karma-firefox-launcher": "^2.1.1",
 		"karma-mocha": "^2.0.1",
 		"karma-typescript": "^5.2.0",
 		"mocha": "^7.2.0",