diff --git a/.github/workflows/test-core-linux.yml b/.github/workflows/test-core-linux.yml
index 023e32925..a01e6d129 100644
--- a/.github/workflows/test-core-linux.yml
+++ b/.github/workflows/test-core-linux.yml
@@ -28,10 +28,10 @@ jobs:
           sudo apt update
           sudo apt install --no-install-recommends -y openssl git nodejs tar bzip2 wget curl grep libx11-xcb1 libappindicator3-1 libasound2 libdbus-glib-1-2 libxtst6 libxt6 php-fpm unzip
           wget -O firefox-setup.tar.bz2 "https://download.mozilla.org/?product=firefox-latest-ssl&os=linux64"
-          tar -xjf firefox-setup.tar.bz2 -C /opt/
+          sudo tar -xjf firefox-setup.tar.bz2 -C /opt/
+          sudo rm -f /usr/bin/firefox
           sudo ln -s /opt/firefox/firefox /usr/bin/firefox
-          sudo chmod 755 /opt/firefox
-          sudo chmod 755 /opt/firefox/firefox
+          sudo chmod 755 /opt/firefox /opt/firefox/firefox
           rm -f firefox-setup.tar.bz2
       - name: Download geckodriver
         uses: nick-fields/retry@v2
diff --git a/.github/workflows/tests-ui-linux.yml b/.github/workflows/tests-ui-linux.yml
index f99c42bc2..2bbc71ed8 100644
--- a/.github/workflows/tests-ui-linux.yml
+++ b/.github/workflows/tests-ui-linux.yml
@@ -25,10 +25,10 @@ jobs:
           sudo apt update
           sudo apt install --no-install-recommends -y zip nodejs tar bzip2 wget curl grep libx11-xcb1 libappindicator3-1 libasound2 libdbus-glib-1-2 libxtst6 libxt6
           wget -O firefox-setup.tar.bz2 "https://download.mozilla.org/?product=firefox-latest-ssl&os=linux64"
-          tar -xjf firefox-setup.tar.bz2 -C /opt/
+          sudo tar -xjf firefox-setup.tar.bz2 -C /opt/
+          sudo rm -f /usr/bin/firefox
           sudo ln -s /opt/firefox/firefox /usr/bin/firefox
-          sudo chmod 755 /opt/firefox
-          sudo chmod 755 /opt/firefox/firefox
+          sudo chmod 755 /opt/firefox /opt/firefox/firefox
           rm -f firefox-setup.tar.bz2
       - name: Download geckodriver
         uses: nick-fields/retry@v2