diff --git a/cli/Valet/Mailpit.php b/cli/Valet/Mailpit.php
index 2e2015e..33ae7fb 100644
--- a/cli/Valet/Mailpit.php
+++ b/cli/Valet/Mailpit.php
@@ -66,7 +66,9 @@ public function install()
     public function ensureInstalled()
     {
         if (!$this->isAvailable()) {
-            $this->cli->run('sudo bash < <(curl -sL https://raw.githubusercontent.com/axllent/mailpit/develop/install.sh)');
+            $this->cli->runAsUser(
+                'curl -sL https://raw.githubusercontent.com/axllent/mailpit/develop/install.sh | bash'
+            );
         }
     }
 
diff --git a/cli/Valet/Site.php b/cli/Valet/Site.php
index 7592825..fac1dcf 100644
--- a/cli/Valet/Site.php
+++ b/cli/Valet/Site.php
@@ -593,6 +593,12 @@ public function trustCertificate($crtPath, $url)
             $url,
             $crtPath
         ));
+
+        $this->cli->run(sprintf(
+            'certutil -d $HOME/snap/firefox/common/.mozilla/firefox/*.default -A -t TC -n "%s" -i "%s"',
+            $url,
+            $crtPath
+        ));
     }
 
     /**
diff --git a/cli/valet.php b/cli/valet.php
index f2c76ef..ed6c37c 100755
--- a/cli/valet.php
+++ b/cli/valet.php
@@ -21,7 +21,7 @@
  * Create the application.
  */
 Container::setInstance(new Container());
-const VALET_VERSION = 'v1.6.6';
+const VALET_VERSION = 'v1.6.7';
 
 $app = new Application('ValetLinux+', VALET_VERSION);