diff --git a/src/app/browser/bookmarks.rs b/src/app/browser/bookmarks.rs
index f74bf4dc..95b4702d 100644
--- a/src/app/browser/bookmarks.rs
+++ b/src/app/browser/bookmarks.rs
@@ -73,7 +73,7 @@ impl Bookmarks for adw::PreferencesDialog {
                                     .format_iso8601()
                                     .unwrap(),
                             )
-                            .title(group)
+                            .title(escape(&group))
                             .build();
 
                         for record in records {
@@ -86,7 +86,7 @@ impl Bookmarks for adw::PreferencesDialog {
                                         None => record.time.format_iso8601().unwrap().to_string(),
                                     })
                                     .subtitle_selectable(true)
-                                    .subtitle(&record.request)
+                                    .subtitle(escape(&record.request))
                                     .build();
 
                                 a.add_suffix(&{
@@ -126,3 +126,8 @@ impl Bookmarks for adw::PreferencesDialog {
         d
     }
 }
+
+/// Prevents GTK warnings (`use_markup` has no effect @TODO)
+fn escape(value: &str) -> String {
+    value.replace("&", "&").replace("&", "&")
+}
diff --git a/src/app/browser/history.rs b/src/app/browser/history.rs
index 8b8c5cdd..17d8f66d 100644
--- a/src/app/browser/history.rs
+++ b/src/app/browser/history.rs
@@ -11,7 +11,7 @@ use adw::{
 };
 use gtk::{
     Align, Button,
-    glib::{DateTime, GString, Uri, UriFlags, gformat},
+    glib::{DateTime, GString, Uri, UriFlags},
     prelude::ButtonExt,
 };
 use indexmap::IndexMap;
@@ -85,7 +85,7 @@ impl History for adw::PreferencesDialog {
                                     .format_iso8601()
                                     .unwrap(),
                             )
-                            .title(group)
+                            .title(escape(&group))
                             .build();
 
                         for record in records {
@@ -94,14 +94,14 @@ impl History for adw::PreferencesDialog {
                                     .activatable(false)
                                     .title_selectable(true)
                                     .title(match record.title {
-                                        Some(title) => title,
-                                        None => gformat!(
+                                        Some(title) => escape(&title),
+                                        None => format!(
                                             "{} ({})",
                                             record.event.time.format_iso8601().unwrap(),
                                             record.event.count
                                         ),
                                     })
-                                    .subtitle(&*record.request)
+                                    .subtitle(escape(&record.request))
                                     .subtitle_selectable(true)
                                     .build();
 
@@ -150,3 +150,8 @@ impl History for adw::PreferencesDialog {
         d
     }
 }
+
+/// Prevents GTK warnings (`use_markup` has no effect @TODO)
+fn escape(value: &str) -> String {
+    value.replace("&", "&").replace("&", "&")
+}