diff --git a/CHANGELOG.md b/CHANGELOG.md
index dca2d3d..a49b090 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,9 +3,10 @@
 ## v3.1.0 (upcoming)
 
 * Kill Chromium processes properly to avoid defunct/zombie processes
-* Include procps (ps), curl and vim packages in the Docker image
 * Update undetected-chromedriver
 * Disable Zygote sandbox in Chromium browser
+* Add more selectors to detect blocked access
+* Include procps (ps), curl and vim packages in the Docker image
 
 ## v3.0.0 (2023/01/04)
 
diff --git a/src/flaresolverr_service.py b/src/flaresolverr_service.py
index 25978a7..cb225a2 100644
--- a/src/flaresolverr_service.py
+++ b/src/flaresolverr_service.py
@@ -16,6 +16,8 @@ import utils
 ACCESS_DENIED_SELECTORS = [
     # Cloudflare
     'div.cf-error-title span.cf-code-label span'
+    # Cloudflare http://bitturk.net/ Firefox
+    '#cf-error-details div.cf-error-overview h1'
 ]
 CHALLENGE_TITLE = [
     # Cloudflare