diff --git a/.dev.sample.json b/.dev.sample.json
new file mode 100644
index 0000000..67bf186
--- /dev/null
+++ b/.dev.sample.json
@@ -0,0 +1,4 @@
+{
+  "DEFAULT_API_URL": "https://app.simplelogin.io",
+  "permissions": []
+}
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index a9a723f..3e45587 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,5 @@
 /dist
 /dist-zip
 .DS_Store
-.idea/
\ No newline at end of file
+.idea/
+.dev.json
\ No newline at end of file
diff --git a/src/popup/SLStorage.js b/src/popup/SLStorage.js
index 4da2e20..29fa66f 100644
--- a/src/popup/SLStorage.js
+++ b/src/popup/SLStorage.js
@@ -8,7 +8,9 @@ class SLStorage {
   };
 
   static DEFAULT_SETTINGS = {
-    [SLStorage.SETTINGS.API_URL]: "https://app.simplelogin.io",
+    [SLStorage.SETTINGS.API_URL]: devConfig
+      ? devConfig.DEFAULT_API_URL
+      : "https://app.simplelogin.io",
     [SLStorage.SETTINGS.API_KEY]: "",
     [SLStorage.SETTINGS.NOT_ASKING_RATE]: false,
   };
diff --git a/webpack.config.js b/webpack.config.js
index a9aa0bb..19eb166 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -5,6 +5,11 @@ const CopyWebpackPlugin = require('copy-webpack-plugin');
 const ExtensionReloader = require('webpack-extension-reloader');
 const { VueLoaderPlugin } = require('vue-loader');
 const { version } = require('./package.json');
+const fs = require('fs');
+
+const devConfig = fs.existsSync('./.dev.json')
+  ? JSON.parse(fs.readFileSync('./.dev.json').toString())
+  : JSON.parse(fs.readFileSync('./.dev.sample.json').toString());
 
 const config = {
   mode: process.env.NODE_ENV,
@@ -91,6 +96,7 @@ const config = {
 
           if (config.mode === 'development') {
             jsonContent['content_security_policy'] = "script-src 'self' 'unsafe-eval'; object-src 'self'";
+            jsonContent['permissions'] = jsonContent['permissions'].concat(devConfig.permissions);
           }
 
           return JSON.stringify(jsonContent, null, 2);
@@ -100,6 +106,14 @@ const config = {
   ],
 };
 
+if (config.mode === 'development') {
+  config.plugins = (config.plugins || []).concat([
+    new webpack.DefinePlugin({
+      devConfig: JSON.stringify(devConfig),
+    }),
+  ]);
+}
+
 if (config.mode === 'production') {
   config.plugins = (config.plugins || []).concat([
     new webpack.DefinePlugin({
@@ -121,6 +135,7 @@ if (process.env.HMR === 'true') {
 function transformHtml(content) {
   return ejs.render(content.toString(), {
     ...process.env,
+    devConfig,
   });
 }