diff --git a/package-lock.json b/package-lock.json
index c158d0a40a2f..29a6c14964c2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -42,6 +42,7 @@
         "ts-jest": "26.5.2",
         "ts-node": "9.1.1",
         "tsconfig-paths": "3.9.0",
+        "tslib": "2.1.0",
         "typescript": "4.2.2",
         "web-ext": "5.5.0",
         "ws": "7.4.3",
@@ -8475,6 +8476,12 @@
         "semver": "bin/semver"
       }
     },
+    "node_modules/less/node_modules/tslib": {
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
+      "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==",
+      "dev": true
+    },
     "node_modules/leven": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/leven/-/leven-3.1.0.tgz",
@@ -10906,12 +10913,6 @@
         "graceful-fs": "^4.1.6"
       }
     },
-    "node_modules/rollup-plugin-typescript2/node_modules/tslib": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.1.0.tgz",
-      "integrity": "sha512-hcVC3wYEziELGGmEEXue7D75zbwIIVUMWAVbHItGPx0ziyXxrOMQx4rQEVEV45Ut/1IotuEvwqPopzIOkDMf0A==",
-      "dev": true
-    },
     "node_modules/rollup-plugin-typescript2/node_modules/universalify": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
@@ -12881,9 +12882,9 @@
       }
     },
     "node_modules/tslib": {
-      "version": "1.14.1",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
-      "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==",
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.1.0.tgz",
+      "integrity": "sha512-hcVC3wYEziELGGmEEXue7D75zbwIIVUMWAVbHItGPx0ziyXxrOMQx4rQEVEV45Ut/1IotuEvwqPopzIOkDMf0A==",
       "dev": true
     },
     "node_modules/tsutils": {
@@ -12901,6 +12902,12 @@
         "typescript": ">=2.8.0 || >= 3.2.0-dev || >= 3.3.0-dev || >= 3.4.0-dev || >= 3.5.0-dev || >= 3.6.0-dev || >= 3.6.0-beta || >= 3.7.0-dev || >= 3.7.0-beta"
       }
     },
+    "node_modules/tsutils/node_modules/tslib": {
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
+      "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==",
+      "dev": true
+    },
     "node_modules/tunnel-agent": {
       "version": "0.6.0",
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
@@ -20931,6 +20938,12 @@
           "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
           "dev": true,
           "optional": true
+        },
+        "tslib": {
+          "version": "1.14.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
+          "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==",
+          "dev": true
         }
       }
     },
@@ -22837,12 +22850,6 @@
             "graceful-fs": "^4.1.6"
           }
         },
-        "tslib": {
-          "version": "2.1.0",
-          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.1.0.tgz",
-          "integrity": "sha512-hcVC3wYEziELGGmEEXue7D75zbwIIVUMWAVbHItGPx0ziyXxrOMQx4rQEVEV45Ut/1IotuEvwqPopzIOkDMf0A==",
-          "dev": true
-        },
         "universalify": {
           "version": "0.1.2",
           "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
@@ -24441,9 +24448,9 @@
       }
     },
     "tslib": {
-      "version": "1.14.1",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
-      "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==",
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.1.0.tgz",
+      "integrity": "sha512-hcVC3wYEziELGGmEEXue7D75zbwIIVUMWAVbHItGPx0ziyXxrOMQx4rQEVEV45Ut/1IotuEvwqPopzIOkDMf0A==",
       "dev": true
     },
     "tsutils": {
@@ -24453,6 +24460,14 @@
       "dev": true,
       "requires": {
         "tslib": "^1.8.1"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "1.14.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
+          "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==",
+          "dev": true
+        }
       }
     },
     "tunnel-agent": {
diff --git a/package.json b/package.json
index fdeae8daa136..903bbcb6b26e 100644
--- a/package.json
+++ b/package.json
@@ -97,6 +97,7 @@
     "ts-jest": "26.5.2",
     "ts-node": "9.1.1",
     "tsconfig-paths": "3.9.0",
+    "tslib": "2.1.0",
     "typescript": "4.2.2",
     "web-ext": "5.5.0",
     "ws": "7.4.3",