diff --git a/browser_patches/firefox-beta/BUILD_NUMBER b/browser_patches/firefox-beta/BUILD_NUMBER
index 2685268958..646423293f 100644
--- a/browser_patches/firefox-beta/BUILD_NUMBER
+++ b/browser_patches/firefox-beta/BUILD_NUMBER
@@ -1,2 +1,2 @@
-1329
-Changed: dgozman@gmail.com Thu Jun  2 16:19:39 PDT 2022
+1330
+Changed: dgozman@gmail.com Wed Jun 22 16:26:54 PDT 2022
diff --git a/browser_patches/firefox-beta/juggler/content/PageAgent.js b/browser_patches/firefox-beta/juggler/content/PageAgent.js
index 0cc03dc5f1..ac4b37e933 100644
--- a/browser_patches/firefox-beta/juggler/content/PageAgent.js
+++ b/browser_patches/firefox-beta/juggler/content/PageAgent.js
@@ -869,7 +869,6 @@ class PageAgent {
         'focused',
         'pressed',
         'focusable',
-        'haspopup',
         'required',
         'invalid',
         'modal',
@@ -906,7 +905,7 @@ class PageAgent {
         if (numericalProperty in attributes)
           tree[numericalProperty] = parseFloat(attributes[numericalProperty]);
       }
-      for (const stringProperty of ['tag', 'roledescription', 'valuetext', 'orientation', 'autocomplete', 'keyshortcuts']) {
+      for (const stringProperty of ['tag', 'roledescription', 'valuetext', 'orientation', 'autocomplete', 'keyshortcuts', 'haspopup']) {
         if (stringProperty in attributes)
           tree[stringProperty] = attributes[stringProperty];
       }
diff --git a/browser_patches/firefox-beta/juggler/protocol/Protocol.js b/browser_patches/firefox-beta/juggler/protocol/Protocol.js
index 55ed6f819b..90d4d99828 100644
--- a/browser_patches/firefox-beta/juggler/protocol/Protocol.js
+++ b/browser_patches/firefox-beta/juggler/protocol/Protocol.js
@@ -149,7 +149,7 @@ axTypes.AXTree = {
   focused: t.Optional(t.Boolean),
   pressed: t.Optional(t.Boolean),
   focusable: t.Optional(t.Boolean),
-  haspopup: t.Optional(t.Boolean),
+  haspopup: t.Optional(t.String),
   required: t.Optional(t.Boolean),
   invalid: t.Optional(t.Boolean),
   modal: t.Optional(t.Boolean),
diff --git a/browser_patches/firefox/BUILD_NUMBER b/browser_patches/firefox/BUILD_NUMBER
index 2f1b374dff..61ca7afdfc 100644
--- a/browser_patches/firefox/BUILD_NUMBER
+++ b/browser_patches/firefox/BUILD_NUMBER
@@ -1,2 +1,2 @@
-1327
-Changed: dgozman@gmail.com Thu Jun  2 16:19:39 PDT 2022
+1328
+Changed: dgozman@gmail.com Wed Jun 22 16:26:54 PDT 2022
diff --git a/browser_patches/firefox/juggler/content/PageAgent.js b/browser_patches/firefox/juggler/content/PageAgent.js
index 0cc03dc5f1..ac4b37e933 100644
--- a/browser_patches/firefox/juggler/content/PageAgent.js
+++ b/browser_patches/firefox/juggler/content/PageAgent.js
@@ -869,7 +869,6 @@ class PageAgent {
         'focused',
         'pressed',
         'focusable',
-        'haspopup',
         'required',
         'invalid',
         'modal',
@@ -906,7 +905,7 @@ class PageAgent {
         if (numericalProperty in attributes)
           tree[numericalProperty] = parseFloat(attributes[numericalProperty]);
       }
-      for (const stringProperty of ['tag', 'roledescription', 'valuetext', 'orientation', 'autocomplete', 'keyshortcuts']) {
+      for (const stringProperty of ['tag', 'roledescription', 'valuetext', 'orientation', 'autocomplete', 'keyshortcuts', 'haspopup']) {
         if (stringProperty in attributes)
           tree[stringProperty] = attributes[stringProperty];
       }
diff --git a/browser_patches/firefox/juggler/protocol/Protocol.js b/browser_patches/firefox/juggler/protocol/Protocol.js
index 55ed6f819b..90d4d99828 100644
--- a/browser_patches/firefox/juggler/protocol/Protocol.js
+++ b/browser_patches/firefox/juggler/protocol/Protocol.js
@@ -149,7 +149,7 @@ axTypes.AXTree = {
   focused: t.Optional(t.Boolean),
   pressed: t.Optional(t.Boolean),
   focusable: t.Optional(t.Boolean),
-  haspopup: t.Optional(t.Boolean),
+  haspopup: t.Optional(t.String),
   required: t.Optional(t.Boolean),
   invalid: t.Optional(t.Boolean),
   modal: t.Optional(t.Boolean),