diff --git a/addon/chrome/content/syncManager.xhtml b/addon/chrome/content/syncManager.xhtml
index 3306eb6..bd14e63 100644
--- a/addon/chrome/content/syncManager.xhtml
+++ b/addon/chrome/content/syncManager.xhtml
@@ -10,6 +10,7 @@
 <!-- prettier-ignore -->
 <!DOCTYPE html>
 <html
+  id="__addonRef__-syncManager"
   lang="en"
   xmlns="http://www.w3.org/1999/xhtml"
   xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
@@ -55,6 +56,11 @@
       });
     </script>
     <style>
+      html,
+      body {
+        min-width: 800px;
+        min-height: 400px;
+      }
       html,
       body,
       .viewport {
diff --git a/addon/chrome/content/templateEditor.xhtml b/addon/chrome/content/templateEditor.xhtml
index 5e72de8..c446c36 100644
--- a/addon/chrome/content/templateEditor.xhtml
+++ b/addon/chrome/content/templateEditor.xhtml
@@ -10,6 +10,7 @@
 <!-- prettier-ignore -->
 <!DOCTYPE html>
 <html
+  id="__addonRef__-templateEditor"
   lang="en"
   xmlns="http://www.w3.org/1999/xhtml"
   xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
@@ -61,6 +62,11 @@
       });
     </script>
     <style>
+      html,
+      body {
+        min-width: 600px;
+        min-height: 400px;
+      }
       html,
       body,
       .viewport {
diff --git a/src/modules/sync/managerWindow.ts b/src/modules/sync/managerWindow.ts
index 63faa83..84e568e 100644
--- a/src/modules/sync/managerWindow.ts
+++ b/src/modules/sync/managerWindow.ts
@@ -22,7 +22,7 @@ export async function showSyncManager() {
     const win = Zotero.getMainWindow().openDialog(
       `chrome://${config.addonRef}/content/syncManager.xhtml`,
       `${config.addonRef}-syncManager`,
-      `chrome,centerscreen,resizable,status,width=800,height=400,dialog=no`,
+      `chrome,centerscreen,resizable,status,dialog=no`,
       windowArgs,
     )!;
     await windowArgs._initPromise.promise;
diff --git a/src/modules/template/editorWindow.ts b/src/modules/template/editorWindow.ts
index e316a4b..046ba6b 100644
--- a/src/modules/template/editorWindow.ts
+++ b/src/modules/template/editorWindow.ts
@@ -17,7 +17,7 @@ export async function showTemplateEditor() {
     const _window = Zotero.getMainWindow().openDialog(
       `chrome://${config.addonRef}/content/templateEditor.xhtml`,
       `${config.addonRef}-templateEditor`,
-      `chrome,centerscreen,resizable,status,width=600,height=400,dialog=no`,
+      `chrome,centerscreen,resizable,status,dialog=no`,
       windowArgs,
     )!;
     addon.data.template.editor.window = _window;
