diff --git a/Gemfile b/Gemfile
index e8c19b918b9..72d024641cb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -113,7 +113,6 @@ end
 group :test do
   gem 'axe-core-rspec', '~> 4.2'
   gem 'bundler-audit', require: false
-  gem 'capybara-selenium', '>= 0.0.6'
   gem 'simplecov', '~> 0.21.0', require: false
   gem 'simplecov-cobertura'
   gem 'simplecov_json_formatter'
diff --git a/Gemfile.lock b/Gemfile.lock
index 489960208c7..ddf2cca0e08 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -210,9 +210,6 @@ GEM
       rack-test (>= 0.6.3)
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
-    capybara-selenium (0.0.6)
-      capybara
-      selenium-webdriver
     cbor (0.5.9.6)
     childprocess (4.1.0)
     choice (0.2.0)
@@ -742,7 +739,6 @@ DEPENDENCIES
   browser
   bullet (~> 7.0)
   bundler-audit
-  capybara-selenium (>= 0.0.6)
   capybara-webmock!
   connection_pool
   cssbundling-rails
diff --git a/README.md b/README.md
index cd8bb6ce0b1..0ef762048cb 100644
--- a/README.md
+++ b/README.md
@@ -198,11 +198,6 @@ $ bundle install
 $ yarn install
 ```
 
-#### I am receiving errors related to Capybara in feature tests
-You may need to install _chromedriver_ or your chromedriver may be the wrong version (`$ which chromedriver && chromedriver --version`).
-
-chromedriver can be installed using [Homebrew](https://formulae.brew.sh/cask/chromedriver) or [direct download](https://chromedriver.chromium.org/downloads). The version of chromedriver should correspond to the version of Chrome you have installed `(Chrome > About Google Chrome)`; if installing via Homebrew, make sure the versions match up.
-
 #### I am receiving errors when creating the development and test databases
 
 If you receive the following error (where _whoami_ == _your username_):
@@ -222,12 +217,23 @@ $ createdb `whoami`
 $ make test_serial
 ```
 
-##### Errors related to too many _open files_
+##### Errors related to Capybara in feature tests
+You may need to install _chromedriver_ or your chromedriver may be the wrong version (`$ which chromedriver && chromedriver --version`).
+
+chromedriver can be installed using [Homebrew](https://formulae.brew.sh/cask/chromedriver) or [direct download](https://chromedriver.chromium.org/downloads). The version of chromedriver should correspond to the version of Chrome you have installed `(Chrome > About Google Chrome)`; if installing via Homebrew, make sure the versions match up. After your system recieves an automatic Chrome browser update you may have to upgrade (or reinstall) chromedriver.
+
+If `chromedriver -v` does not work you may have to [allow it](https://stackoverflow.com/questions/60362018/macos-catalinav-10-15-3-error-chromedriver-cannot-be-opened-because-the-de) with `xattr`.
+
+##### Errors related to _too many open files_
 You may receive connection errors similar to the following:
 
 `Failed to open TCP connection to 127.0.0.1:9515 (Too many open files - socket(2) for "127.0.0.1" port 9515)`
 
-Running the following, _prior_ to running tests, may solve the problem:
+You are encountering you OS's [limits on allowed file descriptors](https://wilsonmar.github.io/maximum-limits/). Check the limits with both:
+* `ulimit -n`
+* `launchctl limit maxfiles`
+
+Try this to increase the user limit:
 ```
 $ ulimit -Sn 65536 && make test
 ```
@@ -235,3 +241,36 @@ To set this _permanently_, add the following to your `~/.zshrc` or `~/.bash_prof
 ```
 ulimit -Sn 65536
 ```
+
+If you are running MacOS, you may find it is not taking your revised ulimit seriously. [You must insist.](https://medium.com/mindful-technology/too-many-open-files-limit-ulimit-on-mac-os-x-add0f1bfddde) Run this command to edit a property list file:
+```
+sudo nano /Library/LaunchDaemons/limit.maxfiles.plist
+```
+Paste the following contents into the text editor:
+```
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
+          "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+  <dict>
+    <key>Label</key>
+    <string>limit.maxfiles</string>
+    <key>ProgramArguments</key>
+    <array>
+      <string>launchctl</string>
+      <string>limit</string>
+      <string>maxfiles</string>
+      <string>524288</string>
+      <string>524288</string>
+    </array>
+    <key>RunAtLoad</key>
+    <true/>
+    <key>ServiceIPC</key>
+    <false/>
+  </dict>
+</plist>
+
+```
+Use Control+X to save the file.
+
+Restart your Mac to cause the .plist to take effect. Check the limits again and you should see both `ulimit -n` and `launchctl limit maxfiles` return a limit of 524288.