diff --git a/lib/docs/filters/web_extensions/clean_html.rb b/lib/docs/filters/web_extensions/clean_html.rb
new file mode 100644
index 00000000..c5737371
--- /dev/null
+++ b/lib/docs/filters/web_extensions/clean_html.rb
@@ -0,0 +1,14 @@
+module Docs
+  class WebExtensions
+    class CleanHtmlFilter < Filter
+      def call
+
+        # Remove all the cruft.
+        content = at_css('main#content')
+        content.at_css('aside.metadata').remove
+
+        content
+      end
+    end
+  end
+end
diff --git a/lib/docs/filters/web_extensions/entries.rb b/lib/docs/filters/web_extensions/entries.rb
new file mode 100644
index 00000000..84c095e7
--- /dev/null
+++ b/lib/docs/filters/web_extensions/entries.rb
@@ -0,0 +1,28 @@
+module Docs
+  class WebExtensions
+    class EntriesFilter < Docs::EntriesFilter
+      def get_name
+        at_css('main#content h1').text
+      end
+
+      def get_type
+        slug_parts = slug.split('/')
+        if slug_parts[0] == 'API' and slug_parts.length() > 1
+          if slug_parts[1] == 'WebRequest'
+            return 'webRequest'
+          else
+            return slug_parts[1]
+          end
+        elsif slug_parts[0] == 'manifest.json'
+          return slug_parts[0]
+        elsif slug_parts[0] == 'user_interface'
+          return 'User Interface'
+        elsif slug_parts.length() > 1
+          return slug_parts[0]
+        else
+          return 'Miscellaneous'
+        end
+      end
+    end
+  end
+end
diff --git a/lib/docs/scrapers/web_extensions.rb b/lib/docs/scrapers/web_extensions.rb
new file mode 100644
index 00000000..15d2c30a
--- /dev/null
+++ b/lib/docs/scrapers/web_extensions.rb
@@ -0,0 +1,26 @@
+module Docs
+  class WebExtensions < UrlScraper
+    self.name = 'Web Extensions'
+    self.slug = 'web_extensions'
+    self.type = 'simple'
+    self.links = {
+      home: 'https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions'
+    }
+
+    self.base_url = 'https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions'
+
+    html_filters.push 'web_extensions/entries', 'web_extensions/clean_html'
+
+    options[:skip_patterns] = [
+      /\/contributors\.txt$/
+    ]
+
+    options[:attribution] = -> (filter) {
+    <<-HTML
+      <a href="#{filter.current_url}">#{filter.result()[:entries][0].name}</a> &copy; 2005-2021 Mozilla and individual contributors.<br>
+      Licensed under the <a href="https://creativecommons.org/licenses/by-sa/2.5/">Creative Commons Attribution-ShareAlike license</a>
+    HTML
+    }
+
+  end
+end