gorhill
diff --git a/‎platform/common/vapi-common.js‎
Lines changed: 12 additions & 0 deletions b/‎platform/common/vapi-common.js‎
Lines changed: 12 additions & 0 deletions
diff --git a/‎src/js/static-filtering-parser.js‎
Lines changed: 2 additions & 0 deletions b/‎src/js/static-filtering-parser.js‎
Lines changed: 2 additions & 0 deletions
@@ -197,6 +197,18 @@ vAPI.webextFlavor = {
                 .add('user_stylesheet');
         }
         flavor.major = match && parseInt(match[1], 10) || 120;
+        // Brave can't be told apart through the user agent string, which is
+        // identical to Chrome's. Both tests below are synchronous, whereas
+        // navigator.brave.isBrave() is promise-based -- the flavor must be
+        // settled before filter lists are compiled and cached. Either test
+        // alone would do, the second one is a fallback for the first.
+        // https://github.com/brave/brave-browser/wiki/Detecting-Brave-(for-Websites)
+        if (
+            navigator.brave instanceof Object ||
+            navigator.userAgentData?.brands?.some(a => a.brand === 'Brave')
+        ) {
+            soup.add('brave');
+        }
     }
 
     // Don't starve potential listeners
 
@@ -604,6 +604,7 @@ export const preparserIfTokens = new Set([
     'ext_ublock',
     'ext_ubol',
     'ext_devbuild',
+    'env_brave',
     'env_chromium',
     'env_edge',
     'env_firefox',
@@ -4230,6 +4231,7 @@ export const utils = (( ) => {
         [ 'ext_ublock', 'ublock' ],
         [ 'ext_ubol', 'ubol' ],
         [ 'ext_devbuild', 'devbuild' ],
+        [ 'env_brave', 'brave' ],
         [ 'env_chromium', 'chromium' ],
         [ 'env_edge', 'edge' ],
         [ 'env_firefox', 'firefox' ],