diff --git a/.gitignore b/.gitignore
index f532c52..7efe2a1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,3 +33,5 @@
 /.lesshst
 /.local
 /.viminfo
+/.webdrivers
+*.swp
diff --git a/Gemfile b/Gemfile
index 99e3cab..656ecdc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -21,13 +21,10 @@ gem "tzinfo-data", platforms: %i[ mingw mswin x64_mingw jruby ]
 gem "devise"
 
 group :development, :test do
-  # See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem
-  gem "debug", platforms: %i[ mri mingw x64_mingw ]
+  gem "byebug"
 end
 
 group :development do
-  gem "byebug"
-
   # Use console on exceptions pages [https://github.com/rails/web-console]
   gem "web-console"
 
diff --git a/Gemfile.lock b/Gemfile.lock
index cfd66de..b55bce7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -66,13 +66,13 @@ GEM
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
       tzinfo (~> 2.0)
-    addressable (2.8.2)
+    addressable (2.8.4)
       public_suffix (>= 2.0.2, < 6.0)
     bcrypt (3.1.18)
     bindex (0.8.1)
     builder (3.2.4)
     byebug (11.1.3)
-    capybara (3.38.0)
+    capybara (3.39.0)
       addressable
       matrix
       mini_mime (>= 0.1.3)
@@ -84,10 +84,7 @@ GEM
     concurrent-ruby (1.2.2)
     crass (1.0.6)
     date (3.3.3)
-    debug (1.7.2)
-      irb (>= 1.5.0)
-      reline (>= 0.3.1)
-    devise (4.9.1)
+    devise (4.9.2)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
       railties (>= 4.1.0)
@@ -102,9 +99,6 @@ GEM
     importmap-rails (1.1.5)
       actionpack (>= 6.0.0)
       railties (>= 6.0.0)
-    io-console (0.6.0)
-    irb (1.6.3)
-      reline (>= 0.3.0)
     loofah (2.20.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
@@ -128,8 +122,8 @@ GEM
       timeout
     net-smtp (0.3.3)
       net-protocol
-    nio4r (2.5.8)
-    nokogiri (1.14.2-x86_64-linux)
+    nio4r (2.5.9)
+    nokogiri (1.14.3-x86_64-linux)
       racc (~> 1.4)
     orm_adapter (0.5.0)
     public_suffix (5.0.1)
@@ -167,8 +161,6 @@ GEM
       zeitwerk (~> 2.5)
     rake (13.0.6)
     regexp_parser (2.7.0)
-    reline (0.3.3)
-      io-console (~> 0.5)
     responders (3.1.0)
       actionpack (>= 5.2)
       railties (>= 5.2)
@@ -227,7 +219,6 @@ PLATFORMS
 DEPENDENCIES
   byebug
   capybara
-  debug
   devise
   importmap-rails
   mysql2 (~> 0.5)
diff --git a/test/application_system_test_case.rb b/test/application_system_test_case.rb
index d19212a..9758202 100644
--- a/test/application_system_test_case.rb
+++ b/test/application_system_test_case.rb
@@ -1,5 +1,8 @@
 require "test_helper"
 
 class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
-  driven_by :selenium, using: :chrome, screen_size: [1400, 1400]
+  # NOTE: remove when capabilities no longer used by Rails
+  Selenium::WebDriver.logger.ignore(:capabilities)
+
+  driven_by :selenium, using: :headless_firefox, screen_size: [1600, 900]
 end
diff --git a/test/fixtures/users.yml b/test/fixtures/users.yml
index 1a2a93c..957a32d 100644
--- a/test/fixtures/users.yml
+++ b/test/fixtures/users.yml
@@ -1,9 +1,3 @@
-# Read about fixtures at https://api.rubyonrails.org/classes/ActiveRecord/FixtureSet.html
-
-one:
-  email: MyString
-  status: 1
-
-two:
-  email: MyString
-  status: 1
+admin:
+  email: admin@dev27.fixin.me
+  status: admin
diff --git a/test/system/users_test.rb b/test/system/users_test.rb
index 6b39d3f..883faad 100644
--- a/test/system/users_test.rb
+++ b/test/system/users_test.rb
@@ -2,42 +2,27 @@ require "application_system_test_case"
 
 class UsersTest < ApplicationSystemTestCase
   setup do
-    @user = users(:one)
+    @admin = users(:admin)
   end
 
-  test "visiting the index" do
-    visit users_url
-    assert_selector "h1", text: "Users"
+  test "sign in" do
+    visit new_user_session_url
   end
 
-  test "should create user" do
-    visit users_url
-    click_on "New user"
+  #test "visiting the index" do
+  #  visit users_url
+  #  assert_selector "h1", text: "Users"
+  #end
 
-    fill_in "Email", with: @user.email
-    fill_in "Status", with: @user.status
-    click_on "Create User"
+  #test "should create user" do
+  #  visit users_url
+  #  click_on "New user"
 
-    assert_text "User was successfully created"
-    click_on "Back"
-  end
+  #  fill_in "Email", with: @user.email
+  #  fill_in "Status", with: @user.status
+  #  click_on "Create User"
 
-  test "should update User" do
-    visit user_url(@user)
-    click_on "Edit this user", match: :first
-
-    fill_in "Email", with: @user.email
-    fill_in "Status", with: @user.status
-    click_on "Update User"
-
-    assert_text "User was successfully updated"
-    click_on "Back"
-  end
-
-  test "should destroy User" do
-    visit user_url(@user)
-    click_on "Destroy this user", match: :first
-
-    assert_text "User was successfully destroyed"
-  end
+  #  assert_text "User was successfully created"
+  #  click_on "Back"
+  #end
 end