Added xpi for firefox, updated manifest.json, updated readme, updated .gitignore

.gitignore

@@ -1 +1,3 @@
 .DS_Store
+Archive.zip
+.amo-upload-uuid

README.md

@@ -4,4 +4,8 @@ Browser extension that removes all the notifications about rooms for rent and sh
 
 Will remove any notifications containing the any of the ~keywords~ keyphrases in keywords.txt so you can make it hide other stuff too if you wanted.
 
-I've only tested with chrome and brave, atm the easiest way to install this is to turn on dev mode in chrome://extensions/ (or equivalent), click on 'Load unpacked' and select the Aula-Extension folder.
+I've only tested with Chrome, Brave and Firefox. The easiest way to install this on chromium or similar is to turn on dev mode in chrome://extensions (or equivalent), click on 'Load unpacked' and select the Aula-Extension folder.
+
+For firefox I've built an xpi which is signed (surprisingly difficult), just open a new firefox tab and drag it into the window.
+
+I'm working on getting the extension published on the chrome and firefox stores.

manifest.json

@@ -16,5 +16,15 @@
       "resources": ["keywords.txt"],
       "matches": ["https://coventry.aula.education/*"]
     }
-  ]
+  ],
+
+  "browser_specific_settings": {
+  "gecko": {
+    "id": "aulaadremoverpublic@tussockyjoker.com",
+    "data_collection_permissions": {
+      "required": ["none"],
+      "optional": []
+  }
+  }
+}
 }