diff --git a/CHANGES.md b/CHANGES.md
index a09256f7535..3c8b531dacb 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -20,6 +20,7 @@ Change Log
 
 ##### Fixes :wrench:
 * Fixed a bug where the camera could go underground during mouse navigation. [#8504](https://github.com/AnalyticalGraphicsInc/cesium/pull/8504)
+* Fixed WebGL warning message about `EXT_float_blend` being implicitly enabled. [#8534](https://github.com/AnalyticalGraphicsInc/cesium/pull/8534)
 
 ### 1.65.0 - 2020-01-06
 
diff --git a/Source/Renderer/Context.js b/Source/Renderer/Context.js
index eac1afd472d..1879a09f14e 100644
--- a/Source/Renderer/Context.js
+++ b/Source/Renderer/Context.js
@@ -251,6 +251,7 @@ import VertexArray from './VertexArray.js';
         this._textureHalfFloatLinear = !!getExtension(gl, ['OES_texture_half_float_linear']);
 
         this._colorBufferFloat = !!getExtension(gl, ['EXT_color_buffer_float', 'WEBGL_color_buffer_float']);
+        this._floatBlend = !!getExtension(gl, ['EXT_float_blend']);
         this._colorBufferHalfFloat = !!getExtension(gl, ['EXT_color_buffer_half_float']);
 
         this._s3tc = !!getExtension(gl, ['WEBGL_compressed_texture_s3tc', 'MOZ_WEBGL_compressed_texture_s3tc', 'WEBKIT_WEBGL_compressed_texture_s3tc']);
@@ -500,6 +501,19 @@ import VertexArray from './VertexArray.js';
             }
         },
 
+        /**
+         * <code>true</code> if the EXT_float_blend extension is supported. This
+         * extension enables blending with 32-bit float values.
+         * @memberof Context.prototype
+         * @type {Boolean}
+         * @see {@link https://www.khronos.org/registry/webgl/extensions/EXT_float_blend/}
+         */
+        floatBlend : {
+            get : function() {
+                return this._floatBlend;
+            }
+        },
+
         /**
          * <code>true</code> if the EXT_blend_minmax extension is supported.  This
          * extension extends blending capabilities by adding two new blend equations: