diff --git a/.circleci/config.yml b/.circleci/config.yml
index 418481eb329c..51f62baf50bb 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -252,16 +252,6 @@ workflows:
                 - /^Version-v(\d+)[.](\d+)[.](\d+)/
           requires:
             - prep-build
-      - test-unit-jest-main:
-          requires:
-            - prep-deps
-      - test-unit-jest-development:
-          requires:
-            - prep-deps
-      - upload-coverage:
-          requires:
-            - test-unit-jest-main
-            - test-unit-jest-development
       - test-unit-global:
           requires:
             - prep-deps
@@ -305,10 +295,7 @@ workflows:
             - test-lint-shellcheck
             - test-lint-lockfile
             - test-lint-changelog
-            - test-unit-jest-main
-            - test-unit-jest-development
             - test-unit-global
-            - upload-coverage
             - validate-source-maps
             - validate-source-maps-beta
             - validate-source-maps-flask
@@ -1630,9 +1617,6 @@ jobs:
           path: builds-test
       - store_artifacts:
           path: builds-test-flask
-      - store_artifacts:
-          path: coverage
-          destination: coverage
       - store_artifacts:
           path: test-artifacts
           destination: test-artifacts
@@ -1713,54 +1697,6 @@ jobs:
             git config user.email metamaskbot@users.noreply.github.com
             yarn ts-migration:dashboard:deploy
 
-  test-unit-jest-development:
-    executor: node-browsers-small
-    steps:
-      - run: *shallow-git-clone
-      - run: sudo corepack enable
-      - attach_workspace:
-          at: .
-      - run:
-          name: jest development unit tests
-          command: yarn test:coverage:jest:dev
-      - persist_to_workspace:
-          root: .
-          paths:
-            - coverage
-      - store_test_results:
-          path: test/test-results/junit.xml
-
-  test-unit-jest-main:
-    executor: node-browsers-medium-plus
-    parallelism: 8
-    steps:
-      - run: *shallow-git-clone
-      - run: sudo corepack enable
-      - attach_workspace:
-          at: .
-      - run:
-          name: test:coverage:jest
-          command: yarn test:coverage:jest
-      - persist_to_workspace:
-          root: .
-          paths:
-            - coverage
-      - store_test_results:
-          path: test/test-results/junit.xml
-
-  upload-coverage:
-    executor: node-browsers-small
-    steps:
-      - run: *shallow-git-clone
-      - run: sudo corepack enable
-      - attach_workspace:
-          at: .
-      - codecov/upload
-      - persist_to_workspace:
-          root: .
-          paths:
-            - coverage
-
   test-unit-global:
     executor: node-browsers-small
     steps:
diff --git a/.github/actions/setup-environment/action.yml b/.github/actions/setup-environment/action.yml
new file mode 100644
index 000000000000..8bdd0ba24c64
--- /dev/null
+++ b/.github/actions/setup-environment/action.yml
@@ -0,0 +1,17 @@
+name: 'Setup environment'
+description: 'Setup environment'
+runs:
+  using: 'composite'
+  steps:
+    - run: corepack enable
+      shell: bash
+
+    - name: Set up Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version-file: '.nvmrc'
+        cache: yarn
+
+    - name: Install dependencies
+      run: yarn --immutable
+      shell: bash
diff --git a/.github/workflows/run-unit-tests.yml b/.github/workflows/run-unit-tests.yml
new file mode 100644
index 000000000000..6b0d0958471b
--- /dev/null
+++ b/.github/workflows/run-unit-tests.yml
@@ -0,0 +1,32 @@
+# WARNING! It is currently being investigated how to make this faster
+# DO NOT blindly copy this workflow, not noticing the slow down,
+# because suddenly our tests will take hours to pass CI.
+# Hopefully this comment here will help prevent that.
+# https://github.com/MetaMask/metamask-extension/issues/25680
+
+name: Run unit tests
+
+on:
+  pull_request:
+    types: [opened,reopened,synchronize]
+
+jobs:
+  test-unit-jest:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup environment
+        uses: ./.github/actions/setup-environment
+
+      - name: test:coverage:jest:dev
+        run: yarn test:coverage:jest:dev
+
+      - name: test:coverage:jest
+        run: yarn test:coverage:jest
+
+      - uses: codecov/codecov-action@e28ff129e5465c2c0dcc6f003fc735cb6ae0c673
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          fail_ci_if_error: true