diff --git a/js/dom.js b/js/dom.js
index 90419571..0f56aa78 100644
--- a/js/dom.js
+++ b/js/dom.js
@@ -49,6 +49,8 @@ navigator.userAgent.includes('Firefox') && setTimeout(() => {
       sizes: size + 'x' + size,
     }));
   }
+  // set hyphenation language
+  document.documentElement.setAttribute('lang', chrome.i18n.getUILanguage());
 });
 
 
diff --git a/popup/popup.css b/popup/popup.css
index 1c78f642..c666221b 100644
--- a/popup/popup.css
+++ b/popup/popup.css
@@ -408,6 +408,10 @@ body.blocked .actions > .left-gutter {
   border-bottom: 1px solid black;
 }
 
+.blocked-info {
+  hyphens: auto;
+}
+
 .blocked-info label {
   padding: 5px 0;
   display: block;