diff --git a/code-style.md b/code-style.md
index 465072c..8749eb5 100644
--- a/code-style.md
+++ b/code-style.md
@@ -31,16 +31,10 @@ someVariable.someMethod(
         new LongClassNameWithSomeParameters(int foo, long bar));
 ```
 
-# Firefox Tab Size in Gitlab
+# Tab Size in Gitlab
 
-Create `$HOME/.mozilla/firefox/[your.profile.folder]/chrome/userContent.css` (if it doesn't exist) and add:
-
-```css
-@-moz-document domain(code.briarproject.org) {
-    .line {
-        -moz-tab-size: 4;
-    }
-}
-```
-
-Restart your browser and enjoy a custom tab size in Gitlab's code and diffs.
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+By default Gitlab expands tabs to 8 characters in source code and diff views
+rather than 4 that we use in Android Studio. As a result the code
+looks very different in the browser than in the IDE. You can configure your
+personal tab width in your Gitlab [profile preferences](https://code.briarproject.org/profile/preferences)
+(Scroll to `Behavior` → `Tab width`)
\ No newline at end of file