| Index: safari/contentBlocking.js | 
| diff --git a/safari/contentBlocking.js b/safari/contentBlocking.js | 
| index 3f9f7ea4cc4f346f1371632a809f939c3ffb4c7e..c68b251d22b9a65850fb38f58bd2f3e5798ac8e7 100644 | 
| --- a/safari/contentBlocking.js | 
| +++ b/safari/contentBlocking.js | 
| @@ -183,7 +183,7 @@ if (contentBlockingSupported) | 
| legacyAPISupported]).then(resolvedValues => | 
| { | 
| let legacyAPISupported = resolvedValues[2]; | 
| - if (!legacyAPISupported) | 
| + if (!legacyAPISupported || Services.vc.compare(require("info").applicationVersion, "12") >= 0) | 
| Prefs.safariContentBlocker = true; | 
| if (Prefs.safariContentBlocker) |