diff --git a/lib/protocols.js b/lib/protocols.js
index 931803591..a22565775 100644
--- a/lib/protocols.js
+++ b/lib/protocols.js
@@ -47,6 +47,16 @@ CommonProtocolHandler.prototype = Object.freeze({
   protocolFlags: Ci.nsIProtocolHandler.URI_NOAUTH |
     Ci.nsIProtocolHandler.URI_LOADABLE_BY_ANYONE,
 
+  normalizedIpfsPath: function (uriSpec) {
+    let schemeExp = this.scheme.replace(/\+/, '\\+') // fix for web+fs etc
+    let ipfsPath = uriSpec.replace(new RegExp('^' + schemeExp + '\\:\\/*'), '')
+    // add protocol prefix if missing
+    if (!(/^ip(?:f|n)s\//.test(ipfsPath))) {
+      ipfsPath = this.pathPrefix + ipfsPath
+    }
+    return ipfsPath
+  },
+
   newURI: function (aSpec, aOriginCharset, aBaseURI) {
     // console.info('Detected newURI with IPFS protocol: ' + aSpec)
 
@@ -65,9 +75,7 @@ CommonProtocolHandler.prototype = Object.freeze({
     return uri
     */
 
-    let schemeExp = this.scheme.replace(/\+/, '\\+') // web+fs etc
-    let ipfsPath = aSpec.replace(new RegExp('^' + schemeExp + '\\:\\/*'), '')
-    let http = gw.publicUri.spec + this.pathPrefix + ipfsPath
+    let http = gw.publicUri.spec + this.normalizedIpfsPath(aSpec)
     let uri = ioservice.newURI(http, aOriginCharset, null)
 
     // console.info('newURI routed to HTTP gateway:  ' + uri.spec)
diff --git a/package.json b/package.json
index 2312b6caa..2f361f7d8 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "id": "ipfs-firefox-addon@lidel.org",
   "description": "Access IPFS resources via custom HTTP2IPFS gateway",
   "author": "Marcin Rataj",
-  "version": "1.4.1",
+  "version": "1.4.2",
   "license": "CC0-1.0",
   "homepage": "https://github.com/lidel/ipfs-firefox-addon",
   "icon": "data/icon-on-64.png",
diff --git a/test/test-protocols.js b/test/test-protocols.js
index 655bf648f..f29e245c6 100644
--- a/test/test-protocols.js
+++ b/test/test-protocols.js
@@ -52,6 +52,10 @@ exports['test newURI(web+ipfs://<path>)'] = function (assert) {
   var newURI = webIpfsHandler.newURI('web+ipfs://' + ipfsPath, 'utf8', null)
   assert.equal(newURI.spec, pubGwUri.spec + 'ipfs/' + ipfsPath, 'newURI spec')
 }
+exports['test newURI(ipfs:/ipfs/<path>)'] = function (assert) {
+  var newURI = ipfsHandler.newURI('ipfs:/ipfs/' + ipfsPath, 'utf8', null)
+  assert.equal(newURI.spec, pubGwUri.spec + 'ipfs/' + ipfsPath, 'newURI spec')
+}
 
 exports['test newURI(ipns:<path>)'] = function (assert) {
   var newURI = ipnsHandler.newURI('ipns:' + ipnsPath, 'utf8', null)
@@ -69,6 +73,10 @@ exports['test newURI(web+ipns://<path>)'] = function (assert) {
   var newURI = webIpnsHandler.newURI('web+ipns://' + ipnsPath, 'utf8', null)
   assert.equal(newURI.spec, pubGwUri.spec + 'ipns/' + ipnsPath, 'newURI spec')
 }
+exports['test newURI(ipns:/ipns/<path>)'] = function (assert) {
+  var newURI = ipnsHandler.newURI('ipns:/ipns/' + ipnsPath, 'utf8', null)
+  assert.equal(newURI.spec, pubGwUri.spec + 'ipns/' + ipnsPath, 'newURI spec')
+}
 
 // The fs:<resource> protocol for easier interoperability with legacy applications
 // It is a simple prefix to the canonical UNIX-like IPFS address