diff --git a/litespeed-cache.php b/litespeed-cache.php
index 487b5cec8..0fc5ea2f2 100644
--- a/litespeed-cache.php
+++ b/litespeed-cache.php
@@ -4,7 +4,7 @@
  * Plugin Name:       LiteSpeed Cache
  * Plugin URI:        https://www.litespeedtech.com/products/cache-plugins/wordpress-acceleration
  * Description:       High-performance page caching and site optimization from LiteSpeed
- * Version:           7.0-b27
+ * Version:           7.0-b28
  * Author:            LiteSpeed Technologies
  * Author URI:        https://www.litespeedtech.com
  * License:           GPLv3
@@ -34,7 +34,7 @@
 	return;
 }
 
-!defined('LSCWP_V') && define('LSCWP_V', '7.0-b27');
+!defined('LSCWP_V') && define('LSCWP_V', '7.0-b28');
 
 !defined('LSCWP_CONTENT_DIR') && define('LSCWP_CONTENT_DIR', WP_CONTENT_DIR);
 !defined('LSCWP_DIR') && define('LSCWP_DIR', __DIR__ . '/'); // Full absolute path '/var/www/html/***/wp-content/plugins/litespeed-cache/' or MU
diff --git a/readme.txt b/readme.txt
index 3c077c888..4d9fa23f6 100644
--- a/readme.txt
+++ b/readme.txt
@@ -274,6 +274,7 @@ You can report security bugs through the Patchstack Vulnerability Disclosure Pro
 * **CLI** QUIC.cloud CLI `wp litespeed-online ping` supports `--force` args now.
 * **Image Optimization** Dropped `Auto Pull Cron` setting. Added PHP const `LITESPEED_IMG_OPTM_ORI` support.
 * **Image Optimization** Supported `LITESPEED_IMG_OPTM_PULL_THREADS` to adjust the threads to avoid PHP max connection limits.
+* **Image Optimization** Supported latest firefox WebP Accept header change for serving WebP.
 * **Purge** Allowed `LSWCP_EMPTYCACHE` defined to false to disable Purge all sites.
 * **Purge** Each purge action now has a hook.
 * **ESI** Fixed a log logic failure when ESI buffer is empty.
diff --git a/src/htaccess.cls.php b/src/htaccess.cls.php
index 2115edc5c..ea3efaaa9 100644
--- a/src/htaccess.cls.php
+++ b/src/htaccess.cls.php
@@ -592,9 +592,14 @@ private function _generate_rules($cfg)
 			$new_rules[] = self::MARKER_WEBP . self::MARKER_START;
 			$new_rules[] = 'RewriteCond %{HTTP_ACCEPT} "image/webp"';
 			$new_rules[] = 'RewriteRule .* - [E=Cache-Control:vary=%{ENV:LSCACHE_VARY_VALUE}+webp]';
+
 			$new_rules[] = 'RewriteCond %{HTTP_USER_AGENT} iPhone.*Version/(\d{2}).*Safari';
 			$new_rules[] = 'RewriteCond %1 >13';
 			$new_rules[] = 'RewriteRule .* - [E=Cache-Control:vary=%{ENV:LSCACHE_VARY_VALUE}+webp]';
+
+			$new_rules[] = 'RewriteCond %{HTTP_USER_AGENT} Firefox/([0-9]+)';
+			$new_rules[] = 'RewriteCond %1 >=65';
+			$new_rules[] = 'RewriteRule .* - [E=Cache-Control:vary=%{ENV:LSCACHE_VARY_VALUE}+webp]';
 			$new_rules[] = self::MARKER_WEBP . self::MARKER_END;
 			$new_rules[] = '';
 		}