diff --git a/background.js b/background.js
index faa73d6b..b369e3f8 100644
--- a/background.js
+++ b/background.js
@@ -379,7 +379,10 @@ ext_api.runtime.onInstalled.addListener(function (details) {
   if (details.reason == "install") {
     setDefaultOptions();
   } else if (details.reason == "update") {
-    ext_api.runtime.openOptionsPage(); // User updated extension
+    ext_api.management.getSelf(function (result) {
+      if (result.installType !== 'development')
+        ext_api.runtime.openOptionsPage(); // User updated extension (non-developer mode)
+    });
   }
 });
 
diff --git a/version.js b/version.js
index 4a3513e4..6740a348 100644
--- a/version.js
+++ b/version.js
@@ -9,16 +9,20 @@ fetch(manifest_new)
 .then(response => {
     if (response.ok) {
         response.json().then(json => {
-            var version_new = json['version'];
-            if (version_new > manifestData.version) {
-                var versionString_new = document.getElementById('version_new');
-                versionString_new.appendChild(document.createTextNode(' * '));
-                var anchorEl = document.createElement('a');
-                anchorEl.text = 'New release v' + version_new;
-                anchorEl.href = 'https://bitbucket.org/magnolia1234/bypass-paywalls-firefox-clean/downloads';
-                anchorEl.target = '_blank';
-                versionString_new.appendChild(anchorEl);
-            }
+            ext_api.management.getSelf(function (result) {
+                var installType = result.installType;
+                var version_len = (installType === 'development') ? 7 : 5;
+                var version_new = json['version'];
+                if (version_new.substring(0, version_len) > manifestData.version.substring(0, version_len)) {
+                    var versionString_new = document.getElementById('version_new');
+                    versionString_new.appendChild(document.createTextNode(' * '));
+                    var anchorEl = document.createElement('a');
+                    anchorEl.text = 'New release v' + version_new;
+                    anchorEl.href = 'https://bitbucket.org/magnolia1234/bypass-paywalls-firefox-clean/downloads';
+                    anchorEl.target = '_blank';
+                    versionString_new.appendChild(anchorEl);
+                }
+            });
         })
     }
 });
\ No newline at end of file