diff --git a/README.md b/README.md
index 0bc58108..eb87a547 100644
--- a/README.md
+++ b/README.md
@@ -594,7 +594,7 @@ The `web-vitals` code has been tested and will run without error in all major br
 Browser support for each function is as follows:
 
 - `getCLS()`: Chromium,
-- `getFCP()`: Chromium, Safari Technology Preview
+- `getFCP()`: Chromium, Firefox, Safari Technology Preview
 - `getFID()`: Chromium, Firefox, Safari, Internet Explorer (with the [polyfill](#how-to-use-the-polyfill))
 - `getLCP()`: Chromium
 - `getTTFB()`: Chromium, Firefox, Safari, Internet Explorer