diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5b6eafc180..b83a22fdff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,6 +27,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 - Do not render the Attachment's `progress` value to the DOM @levithomason ([#402](https://github.com/stardust-ui/react/pull/402))
 - Add Segment background color @levithomason ([#408](https://github.com/stardust-ui/react/pull/408))
 - Make `eventStack` subscription logic to be always async @kuzhelov ([#391](https://github.com/stardust-ui/react/pull/391))
+- Fix for dotted focus outline in Firefox for `Button` component in docs @Bugaa92 ([#390](https://github.com/stardust-ui/react/pull/390))
 
 ### Features
 - Export `mergeThemes` @levithomason ([#285](https://github.com/stardust-ui/react/pull/285))
diff --git a/docs/src/Style.ts b/docs/src/Style.ts
index 1008bf1016..63591be984 100644
--- a/docs/src/Style.ts
+++ b/docs/src/Style.ts
@@ -37,4 +37,11 @@ export const semanticCssOverrides = `
     color: rgba(255,255,255,.7)!important;
     cursor: not-allowed!important;
   }
+
+  button:-moz-focusring,
+  [type="button"]:-moz-focusring,
+  [type="reset"]:-moz-focusring,
+  [type="submit"]:-moz-focusring {
+    outline: 0;
+  }
 `