diff --git a/packages/app/src/components/NetworkSwitch.vue b/packages/app/src/components/NetworkSwitch.vue
index f92cdc913a..d63fc1fa4d 100644
--- a/packages/app/src/components/NetworkSwitch.vue
+++ b/packages/app/src/components/NetworkSwitch.vue
@@ -73,7 +73,7 @@ const getNetworkUrl = (network: NetworkConfig) => {
   @apply relative;
 
   .network-list-wrapper {
-    @apply absolute right-0 top-full h-auto w-full lg:w-[200px];
+    @apply absolute right-0 top-full h-auto w-full lg:w-[260px];
   }
   .network-list {
     @apply absolute right-0 top-1 z-10 mb-1 max-h-56 w-full overflow-auto rounded-md bg-white py-1 text-base shadow-lg ring-1 ring-black ring-opacity-5 focus:outline-none sm:text-sm;
diff --git a/packages/app/src/configs/dev.config.json b/packages/app/src/configs/dev.config.json
index 6d8ef54ec3..052fed4a04 100644
--- a/packages/app/src/configs/dev.config.json
+++ b/packages/app/src/configs/dev.config.json
@@ -26,7 +26,7 @@
       "icon": "/images/icons/zksync-arrows.svg",
       "l1ExplorerUrl": "https://goerli.etherscan.io",
       "l2ChainId": 280,
-      "l2NetworkName": "zkSync Era Testnet",
+      "l2NetworkName": "zkSync Era Goerli Testnet",
       "l2WalletUrl": "https://goerli.staging-portal.zksync.dev/",
       "maintenance": false,
       "name": "goerli",
@@ -34,6 +34,22 @@
       "published": true,
       "rpcUrl": "https://testnet.era.zksync.dev"
     },
+    {
+      "apiUrl": "https://block-explorer-api.sepolia.zksync.dev",
+      "verificationApiUrl": "https://explorer.sepolia.era.zksync.dev",
+      "bridgeUrl": "https://staging.goerli.bridge.zksync.dev",
+      "hostnames": [],
+      "icon": "/images/icons/zksync-arrows.svg",
+      "l1ExplorerUrl": "https://sepolia.etherscan.io",
+      "l2ChainId": 300,
+      "l2NetworkName": "zkSync Era Sepolia Testnet",
+      "l2WalletUrl": "https://staging-portal.zksync.dev/?network=era-boojnet",
+      "maintenance": false,
+      "name": "sepolia",
+      "newProverUrl": "https://storage.googleapis.com/zksync-era-testnet-proofs/proofs_fri",
+      "published": true,
+      "rpcUrl": "https://sepolia.era.zksync.dev"
+    },
     {
       "apiUrl": "https://block-explorer-api.stage.zksync.dev",
       "verificationApiUrl": "https://z2-dev-api-explorer.zksync.dev",
diff --git a/packages/app/src/configs/staging.config.json b/packages/app/src/configs/staging.config.json
index 9a23293626..17d966e752 100644
--- a/packages/app/src/configs/staging.config.json
+++ b/packages/app/src/configs/staging.config.json
@@ -10,7 +10,7 @@
       "icon": "/images/icons/zksync-arrows.svg",
       "l1ExplorerUrl": "https://goerli.etherscan.io",
       "l2ChainId": 280,
-      "l2NetworkName": "zkSync Era Testnet",
+      "l2NetworkName": "zkSync Era Goerli Testnet",
       "l2WalletUrl": "https://goerli.staging-portal.zksync.dev/",
       "maintenance": false,
       "name": "goerli",
@@ -18,6 +18,22 @@
       "published": true,
       "rpcUrl": "https://testnet.era.zksync.dev"
     },
+    {
+      "apiUrl": "https://block-explorer-api.sepolia.zksync.dev",
+      "verificationApiUrl": "https://explorer.sepolia.era.zksync.dev",
+      "bridgeUrl": "https://staging.goerli.bridge.zksync.dev",
+      "hostnames": [],
+      "icon": "/images/icons/zksync-arrows.svg",
+      "l1ExplorerUrl": "https://sepolia.etherscan.io",
+      "l2ChainId": 300,
+      "l2NetworkName": "zkSync Era Sepolia Testnet",
+      "l2WalletUrl": "https://staging-portal.zksync.dev/?network=era-boojnet",
+      "maintenance": false,
+      "name": "sepolia",
+      "newProverUrl": "https://storage.googleapis.com/zksync-era-testnet-proofs/proofs_fri",
+      "published": true,
+      "rpcUrl": "https://sepolia.era.zksync.dev"
+    },
     {
       "apiUrl": "https://block-explorer-api.stage.zksync.dev",
       "verificationApiUrl": "https://z2-dev-api-explorer.zksync.dev",
diff --git a/packages/app/tests/e2e/features/artifacts/artifactsSet1.feature b/packages/app/tests/e2e/features/artifacts/artifactsSet1.feature
index 4217c90f80..48fb7e8fb2 100644
--- a/packages/app/tests/e2e/features/artifacts/artifactsSet1.feature
+++ b/packages/app/tests/e2e/features/artifacts/artifactsSet1.feature
@@ -70,11 +70,11 @@ Feature: Main Page
     Then Check the "<Value>" value is actual for "<Dropdown>" switcher
 
     Examples:
-      | Value               | Dropdown |
-      | zkSync Era Testnet  | network  |
-      | zkSync Era Mainnet  | network  |
-      | EN                  | language |
-      | UA                  | language |
+      | Value                      | Dropdown |
+      | zkSync Era Goerli Testnet  | network  |
+      | zkSync Era Mainnet         | network  |
+      | EN                         | language |
+      | UA                         | language |
 
   @id254:II @featureEnv
   Scenario Outline: Check dropdown "<Dropdown>" for "<Value>" and verify
diff --git a/packages/app/tests/e2e/features/redirection/redirectionSet3.feature b/packages/app/tests/e2e/features/redirection/redirectionSet3.feature
index 86b97d052a..d66eee55cb 100644
--- a/packages/app/tests/e2e/features/redirection/redirectionSet3.feature
+++ b/packages/app/tests/e2e/features/redirection/redirectionSet3.feature
@@ -61,10 +61,10 @@ Feature: Redirection
     Then Current page have "<url>" address 
 
     Examples: 
-     | Initial page                                             | Network            | url                                                                     |
-     | /address/0x000000000000000000000000000000000000800A      | zkSync Era Testnet | /address/0x000000000000000000000000000000000000800A/?network=goerli      | 
-     | /address/0x000000000000000000000000000000000000800A      | Goerli (Stage2)    | /address/0x000000000000000000000000000000000000800A/?network=goerli-beta | 
-     | /address/0x000000000000000000000000000000000000800A      | zkSync Era Mainnet | /address/0x000000000000000000000000000000000000800A/?network=mainnet     | 
+     | Initial page                                             | Network                   | url                                                                      |
+     | /address/0x000000000000000000000000000000000000800A      | zkSync Era Goerli Testnet | /address/0x000000000000000000000000000000000000800A/?network=goerli      | 
+     | /address/0x000000000000000000000000000000000000800A      | Goerli (Stage2)           | /address/0x000000000000000000000000000000000000800A/?network=goerli-beta | 
+     | /address/0x000000000000000000000000000000000000800A      | zkSync Era Mainnet        | /address/0x000000000000000000000000000000000000800A/?network=mainnet     | 
 
   @id561:I @id562:I @id563:I @stagingEnv
   Scenario Outline: Verify redirection to "<Network>" network 
@@ -73,6 +73,6 @@ Feature: Redirection
     Then Current page have "<url>" address 
 
     Examples: 
-     | Initial page                                         | Network            | url                                                                      | 
-     | /address/0x000000000000000000000000000000000000800A  | zkSync Era Mainnet | /address/0x000000000000000000000000000000000000800A/?network=mainnet     | 
-     | /address/0x000000000000000000000000000000000000800A  | zkSync Era Testnet | /address/0x000000000000000000000000000000000000800A/?network=goerli      | 
+     | Initial page                                         | Network                   | url                                                                      | 
+     | /address/0x000000000000000000000000000000000000800A  | zkSync Era Mainnet        | /address/0x000000000000000000000000000000000000800A/?network=mainnet     | 
+     | /address/0x000000000000000000000000000000000000800A  | zkSync Era Goerli Testnet | /address/0x000000000000000000000000000000000000800A/?network=goerli      |