diff --git a/experimenter/experimenter/features/manifests/fenix/.ref-cache.yaml b/experimenter/experimenter/features/manifests/fenix/.ref-cache.yaml
index 2e0f1995ba..477b14935c 100644
--- a/experimenter/experimenter/features/manifests/fenix/.ref-cache.yaml
+++ b/experimenter/experimenter/features/manifests/fenix/.ref-cache.yaml
@@ -1,3 +1,3 @@
-beta: f48d3ef3455e3f36156d8448f7f998c289483364
-master: f9517009d8a4946dbdd3acd72a31dc34fca79586
+beta: 301efb7a7fe748cfc0f2b0a6a6b72e3d1d36f7d6
+master: 1460e875c4189d975835af78fd06bd6daa9b553a
 release: 2af729f544f4d8b5371df3baceae96d37afeb286
diff --git a/experimenter/experimenter/features/manifests/firefox-desktop/.ref-cache.yaml b/experimenter/experimenter/features/manifests/firefox-desktop/.ref-cache.yaml
index ac476847a6..cb2395ed11 100644
--- a/experimenter/experimenter/features/manifests/firefox-desktop/.ref-cache.yaml
+++ b/experimenter/experimenter/features/manifests/firefox-desktop/.ref-cache.yaml
@@ -1,5 +1,5 @@
-beta: 9b0354c7e9133ef3d46c4b8fe517bbf0a6a9c6fe
-central: 92dd3425067a91fb007ba63e3facfb2a26b690dd
+beta: ee185fbf1f04c06e8a754e9c019211a56c0e0594
+central: c96eede96f858acbcc5fe906c700ba423c238a6a
 esr115: 020e9925f81bb0221add107b6b7ea8d3e32f269f
 esr128: e911f33083f63cb17f86fd300c39f4900f1fe478
 release: 213845d047e0fb1c076d969e8163fa702ca9154e
diff --git a/experimenter/experimenter/features/manifests/firefox-desktop/experimenter.yaml b/experimenter/experimenter/features/manifests/firefox-desktop/experimenter.yaml
index 2e3bac1b69..96e6ff865f 100644
--- a/experimenter/experimenter/features/manifests/firefox-desktop/experimenter.yaml
+++ b/experimenter/experimenter/features/manifests/firefox-desktop/experimenter.yaml
@@ -2839,6 +2839,16 @@ fxaButtonVisibility:
       setPref:
         branch: user
         pref: identity.fxaccounts.toolbar.pxiToolbarEnabled.vpnEnabled
+    avatarIconVariant:
+      description: >-
+        Controls the icon that appears in the toolbar button when in the
+        signed-out state.
+
+        One of the following values:
+          - control
+          - human-circle
+          - fox-circle
+      type: string
 
 syncSetupFlow:
   description: Prefs to control the updated Mozilla account panel flow for users without sync enabled.
diff --git a/experimenter/experimenter/features/manifests/firefox-desktop/v135.0.0/experimenter.yaml b/experimenter/experimenter/features/manifests/firefox-desktop/v135.0.0/experimenter.yaml
index 2e3bac1b69..96e6ff865f 100644
--- a/experimenter/experimenter/features/manifests/firefox-desktop/v135.0.0/experimenter.yaml
+++ b/experimenter/experimenter/features/manifests/firefox-desktop/v135.0.0/experimenter.yaml
@@ -2839,6 +2839,16 @@ fxaButtonVisibility:
       setPref:
         branch: user
         pref: identity.fxaccounts.toolbar.pxiToolbarEnabled.vpnEnabled
+    avatarIconVariant:
+      description: >-
+        Controls the icon that appears in the toolbar button when in the
+        signed-out state.
+
+        One of the following values:
+          - control
+          - human-circle
+          - fox-circle
+      type: string
 
 syncSetupFlow:
   description: Prefs to control the updated Mozilla account panel flow for users without sync enabled.
diff --git a/experimenter/experimenter/features/manifests/focus-ios/.ref-cache.yaml b/experimenter/experimenter/features/manifests/focus-ios/.ref-cache.yaml
index 3eed5c6e98..500ad50e35 100644
--- a/experimenter/experimenter/features/manifests/focus-ios/.ref-cache.yaml
+++ b/experimenter/experimenter/features/manifests/focus-ios/.ref-cache.yaml
@@ -13,7 +13,7 @@ focus/klar-v131.1: b7dca2271b14988837524a30eb154d91eb5e4912
 focus/klar-v132.0: d9ed6134db59ff456d343e2bb211aefd040319ac
 focus/klar-v133.0: a3372669a06fa684d3c5945c317d6787e3125303
 focus/klar-v134.0: be550d94c2c7bc8b8902cdf7fe542a64e73a381a
-main: 3e1fc4259238dec086a5b899734c65ebb818d639
+main: 4bd067d861943a744a6e3b14e9fc186ff14cb3aa
 release/v124: da250bed9e19c4978d4400d6d404cb312e33636e
 release/v125: a3e1e0773a00009e08d95726fd518ab642255ccd
 release/v126: 6f305409b4af68e8404401a2caad8cb0da9a0494
diff --git a/experimenter/experimenter/features/manifests/ios/.ref-cache.yaml b/experimenter/experimenter/features/manifests/ios/.ref-cache.yaml
index 77237b6c39..708e138cb3 100644
--- a/experimenter/experimenter/features/manifests/ios/.ref-cache.yaml
+++ b/experimenter/experimenter/features/manifests/ios/.ref-cache.yaml
@@ -1,4 +1,4 @@
-main: 3e1fc4259238dec086a5b899734c65ebb818d639
+main: 4bd067d861943a744a6e3b14e9fc186ff14cb3aa
 release/v117: 43b690c450066d4dde1b2ccb93ed3714d244d502
 release/v118: 89a7ea3c3372e5a4ef5b3c5b85499d26198d0524
 release/v119: 7dc381f991c6d2a983c3ba7f0cffd880e8c29e7b