diff --git a/.circleci/config.yml b/.circleci/config.yml
index 10197c3f8a..7db0e3a2b1 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -90,12 +90,6 @@ jobs:
             firefox --version
             geckodriver --version
             chromedriver --version
-            java -jar /usr/local/bin/selenium.jar --version
-      - run:
-          name: Check out previous test metadata
-          command: |
-            cat "${CIRCLE_INTERNAL_TASK_DATA}/circle-test-results/results.json" | jq .
-            ls -la "${CIRCLE_INTERNAL_TASK_DATA}/"
       - checkout
       - attach_workspace:
           at: .
@@ -107,9 +101,10 @@ jobs:
       - run: yarn
       - run: yarn run downloadsolc_assets_e2e && yarn run downloadsolc_assets_dist
       - run: ls -la ./dist/apps/remix-ide/assets/js
+      - run: yarn run selenium-install
       - run:
           name: Start Selenium
-          command: java -jar /usr/local/bin/selenium.jar
+          command: yarn run selenium
           background: true
       - run: ./apps/remix-ide/ci/<< parameters.script >> << parameters.browser >> << parameters.jobsize >> << parameters.job >>
       - store_test_results:
@@ -141,7 +136,6 @@ jobs:
             firefox --version
             geckodriver --version
             chromedriver --version
-            java -jar /usr/local/bin/selenium.jar --version
           name: Check install
       - checkout
       - attach_workspace:
@@ -153,9 +147,10 @@ jobs:
       - run: yarn
       - run: unzip ./persist/dist.zip
       - run: yarn run downloadsolc_assets_e2e && yarn run downloadsolc_assets_dist
+      - run: yarn run selenium-install
       - run:
           name: Start Selenium
-          command: java -jar /usr/local/bin/selenium.jar
+          command: yarn run selenium
           background: true
       - run: ./apps/remix-ide/ci/<< parameters.script >>
       - store_test_results:
diff --git a/apps/remix-ide-e2e/src/commands/debugTransaction.ts b/apps/remix-ide-e2e/src/commands/debugTransaction.ts
index 67955ea38d..2347d8d939 100644
--- a/apps/remix-ide-e2e/src/commands/debugTransaction.ts
+++ b/apps/remix-ide-e2e/src/commands/debugTransaction.ts
@@ -2,7 +2,7 @@ import { NightwatchBrowser } from 'nightwatch'
 import EventEmitter from 'events'
 
 class debugTransaction extends EventEmitter {
-  command (this: NightwatchBrowser, index = 0): NightwatchBrowser {
+  command(this: NightwatchBrowser, index = 0): NightwatchBrowser {
     this.api.perform((done) => {
       checkStyle(this.api, index, () => {
         done()
@@ -13,14 +13,27 @@ class debugTransaction extends EventEmitter {
   }
 }
 
-function checkStyle (browser: NightwatchBrowser, index: number, callback: VoidFunction) {
-  browser.pause(5000).execute(function (index: number) {
+function checkStyle(browser: NightwatchBrowser, index: number, callback: VoidFunction) {
+  let elementsFound = 0
+  browser.waitUntil(() => {
+    browser.findElements({
+      selector: '*[data-shared="txLoggerDebugButton"]',
+      timeout: 60000,
+    }, (result) => {
+      if (Array.isArray(result.value) && result.value.length > 0) {
+        elementsFound = result.value.length
+      }
+    })
+    return elementsFound > index
+  }, 60000)
+  .execute(function (index: number) {
     const debugBtn = document.querySelectorAll('*[data-shared="txLoggerDebugButton"]')[index] as HTMLInputElement
 
     debugBtn && debugBtn.click()
   }, [index], function () {
     browser.waitForElementVisible('*[data-id="buttonNavigatorJumpPreviousBreakpoint"]', 60000).perform(() => callback())
   })
+
 }
 
 module.exports = debugTransaction
diff --git a/apps/remix-ide-e2e/src/tests/solidityImport.test.ts b/apps/remix-ide-e2e/src/tests/solidityImport.test.ts
index 8c2d94072a..2cdd6894f6 100644
--- a/apps/remix-ide-e2e/src/tests/solidityImport.test.ts
+++ b/apps/remix-ide-e2e/src/tests/solidityImport.test.ts
@@ -104,10 +104,27 @@ module.exports = {
   'Test NPM Import (with unpkg.com) #group3': function (browser: NightwatchBrowser) {
     browser
       .setSolidityCompilerVersion('soljson-v0.8.7+commit.e28d00a7.js')
+      .waitForElementPresent({
+        selector: `//*[@data-id='compilerloaded' and @data-version='soljson-v0.8.7+commit.e28d00a7.js']`,
+        locateStrategy: 'xpath',
+        timeout: 120000
+      })
       .clickLaunchIcon('filePanel')
       .click('li[data-id="treeViewLitreeViewItemREADME.txt"')
       .addFile('Untitled9.sol', sources[8]['Untitled9.sol'])
+      // avoid invalid source issues
+      .isVisible({
+        selector: '*[data-id="treeViewLitreeViewItem.deps/npm/@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol"]',
+        timeout: 120000,
+        suppressNotFoundErrors: true
+      })
+      .clickLaunchIcon('solidity')
+      .click('[data-id="compilerContainerCompileBtn"]')
       .clickLaunchIcon('filePanel')
+      .isVisible({
+        selector: '*[data-id="treeViewLitreeViewItem.deps/npm/@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol"]',
+        timeout: 120000,
+      })
       .verifyContracts(['test13', 'ERC20'], { wait: 30000 })
       .end()
   }