diff --git a/dev_README.txt b/dev_README.txt
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+Building/Running
+
+----
+
+Install host, making sure installed manifests match firefox/chrome search paths
+
+npm install web-ext
+
+cd extension;
+web-ext build -a /destPath
+
+
+for more web-ext commands see:
+https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Getting_started_with_web-ext
+
+
+-----
+
+Tags:
+
+Plasma/5.N
+refer to the Plasma releases of the host managed by Riddell
+
+browser/N.N
+refer to tags of extensions uploaded to the various stores. They should match the manifest version
+
+----
+