diff --git a/package.json b/package.json
index 69a2eb97a8..95d4a62343 100644
--- a/package.json
+++ b/package.json
@@ -15,10 +15,10 @@
     "prettier:format": "./node_modules/.bin/prettier --write .",
     "lint": "yarn workspace arb-token-bridge-ui lint",
     "lint:fix": "yarn workspace arb-token-bridge-ui lint:fix",
-    "test:e2e": "yarn workspace arb-token-bridge-ui env-cmd --silent --file .e2e.env yarn synpress run --configFile synpress.config.ts",
-    "test:e2e:cctp": "yarn test:e2e --configFile synpress.cctp.config.ts",
-    "test:e2e:orbit": "E2E_ORBIT=true yarn test:e2e",
-    "test:e2e:orbit:custom-gas-token": "E2E_ORBIT_CUSTOM_GAS_TOKEN=true yarn test:e2e"
+    "test:e2e": "E2E=true yarn workspace arb-token-bridge-ui env-cmd --silent --file .e2e.env yarn synpress run --configFile synpress.config.ts",
+    "test:e2e:cctp": "E2E=true yarn test:e2e --configFile synpress.cctp.config.ts",
+    "test:e2e:orbit": "E2E=true E2E_ORBIT=true yarn test:e2e",
+    "test:e2e:orbit:custom-gas-token": "E2E=true E2E_ORBIT_CUSTOM_GAS_TOKEN=true yarn test:e2e"
   },
   "resolutions": {
     "**/@walletconnect/ethereum-provider": "2.13.1",
diff --git a/packages/arb-token-bridge-ui/src/components/common/ProjectsListing.tsx b/packages/arb-token-bridge-ui/src/components/common/ProjectsListing.tsx
index 24169687dc..f42ff7a36f 100644
--- a/packages/arb-token-bridge-ui/src/components/common/ProjectsListing.tsx
+++ b/packages/arb-token-bridge-ui/src/components/common/ProjectsListing.tsx
@@ -11,7 +11,7 @@ import { getBridgeUiConfigForChain } from '../../util/bridgeUiConfig'
 import { getChainQueryParamForChain } from '../../types/ChainQueryParam'
 import { trackEvent } from '../../util/AnalyticsUtils'
 import { useIsTestnetMode } from '../../hooks/useIsTestnetMode'
-import { isTestingEnvironment } from '../../util/CommonUtils'
+import { isNonProductionEnvironment } from '../../util/envUtils'
 
 const shuffleArray = (array: PortalProject[]) => {
   return array.sort(() => Math.random() - 0.5)
@@ -54,7 +54,7 @@ const fetchProjects = async (
   }
 
   if (isTestnetMode) {
-    return isTestingEnvironment ? generateTestnetProjects(chainId, 6) : [] // don't show any test projects in production
+    return isNonProductionEnvironment ? generateTestnetProjects(chainId, 6) : [] // don't show any test projects in production
   }
 
   try {
diff --git a/packages/arb-token-bridge-ui/src/util/CommonUtils.ts b/packages/arb-token-bridge-ui/src/util/CommonUtils.ts
index 987a628792..7f30ac20ec 100644
--- a/packages/arb-token-bridge-ui/src/util/CommonUtils.ts
+++ b/packages/arb-token-bridge-ui/src/util/CommonUtils.ts
@@ -15,6 +15,3 @@ export function shortenTxHash(txHash: string) {
     txHashLength
   )}`
 }
-
-export const isTestingEnvironment =
-  !!window.Cypress || process.env.NODE_ENV !== 'production'
diff --git a/packages/arb-token-bridge-ui/src/util/envUtils.ts b/packages/arb-token-bridge-ui/src/util/envUtils.ts
new file mode 100644
index 0000000000..2e8b6b36dd
--- /dev/null
+++ b/packages/arb-token-bridge-ui/src/util/envUtils.ts
@@ -0,0 +1,7 @@
+export const isE2eEnvironment =
+  !!(typeof window !== 'undefined' && window && window.Cypress) ||
+  process.env.E2E === 'true'
+
+// non-production environment can be e2e, vercel preview and local dev environment
+export const isNonProductionEnvironment =
+  isE2eEnvironment || process.env.NODE_ENV !== 'production'
diff --git a/packages/arb-token-bridge-ui/src/util/orbitChainsList.ts b/packages/arb-token-bridge-ui/src/util/orbitChainsList.ts
index fd7bcc9f4b..93192b4756 100644
--- a/packages/arb-token-bridge-ui/src/util/orbitChainsList.ts
+++ b/packages/arb-token-bridge-ui/src/util/orbitChainsList.ts
@@ -1,5 +1,6 @@
 import { NativeCurrencyBase } from '../hooks/useNativeCurrency'
-import { ChainWithRpcUrl } from './networks'
+import { isE2eEnvironment } from './envUtils'
+import { ChainWithRpcUrl, ChainId } from './networks'
 import orbitChainsData from './orbitChainsData.json'
 
 export type NetworkType =
@@ -59,6 +60,13 @@ export function getOrbitChains(
     testnet: boolean
   } = { mainnet: true, testnet: true }
 ): OrbitChainConfig[] {
+  if (isE2eEnvironment) {
+    // During E2E tests, only return local chains
+    return Object.values(orbitChains).filter(
+      chain => chain.chainId === ChainId.L3Local
+    )
+  }
+
   const mainnetChains = mainnet ? Object.values(orbitMainnets) : []
   const testnetChains = testnet ? Object.values(orbitTestnets) : []
 
diff --git a/packages/arb-token-bridge-ui/src/util/wagmi/setup.ts b/packages/arb-token-bridge-ui/src/util/wagmi/setup.ts
index d32c467a51..409d05f5f4 100644
--- a/packages/arb-token-bridge-ui/src/util/wagmi/setup.ts
+++ b/packages/arb-token-bridge-ui/src/util/wagmi/setup.ts
@@ -16,11 +16,11 @@ import {
   base,
   baseSepolia
 } from './wagmiAdditionalNetworks'
-import { isTestingEnvironment } from '../CommonUtils'
 import { getCustomChainsFromLocalStorage, ChainId, rpcURLs } from '../networks'
 import { getOrbitChains } from '../orbitChainsList'
 import { getWagmiChain } from './getWagmiChain'
 import { customInfuraProvider } from '../infura'
+import { isE2eEnvironment } from '../envUtils'
 
 const customChains = getCustomChainsFromLocalStorage().map(chain =>
   getWagmiChain(chain.chainId)
@@ -42,17 +42,14 @@ const defaultChains = [
   holesky
 ]
 
-const chainList = isTestingEnvironment
+const chainList = isE2eEnvironment
   ? [
-      ...defaultChains,
-      // Orbit chains
-      ...wagmiOrbitChains,
-      // add local environments during testing
+      // only include local + sepolia testnet during E2E's
       local,
       arbitrumLocal,
       l3Local,
-      // user-added custom chains
-      ...customChains
+      sepolia,
+      arbitrumSepolia
     ]
   : [...defaultChains, ...wagmiOrbitChains, ...customChains]