diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e893a3e..d8abd28 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -50,6 +50,7 @@ jobs:
         run: |
           sudo rm -rf /Applications/Firefox.app
           sudo rm -rf /Applications/Google\ Chrome.app
+          sudo rm -rf /usr/local/bin/firefox
 
       - name: Install test dependencies.
         run: |