diff --git a/experimenter/experimenter/features/manifests/fenix/.ref-cache.yaml b/experimenter/experimenter/features/manifests/fenix/.ref-cache.yaml
index cff6f1b183..04dce6117f 100644
--- a/experimenter/experimenter/features/manifests/fenix/.ref-cache.yaml
+++ b/experimenter/experimenter/features/manifests/fenix/.ref-cache.yaml
@@ -1,3 +1,3 @@
-beta: 5f5f7f9d8b995a17da5f768c4f9d330862d45e72
-master: 29e186485fe1b835f05bde01f650e371545de98e
-release: cd38106203c7d9f44b75a5a112cf0488c8c8a173
+beta: 7cd835a465f64763993aad9ec3d3221a91d00470
+master: 9f9fa5d2cb72b12ac7e168b7f6ee9820f63291e9
+release: 55854d1d5fea58eb257bedfe707f2228556943a3
diff --git a/experimenter/experimenter/features/manifests/firefox-desktop/.ref-cache.yaml b/experimenter/experimenter/features/manifests/firefox-desktop/.ref-cache.yaml
index b832643bdf..bb98f1c897 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: 80127ac28939bfb433e4dc5e9792888166e0cc2f
-central: 9c18ffcb71e3ba3fb77093494dc190bb411840e3
-esr115: 7f6c5d86c04cb9078dec5596c5b0dfb1cfcfb7c3
-esr128: 35a312538af48e822f0ae314b89a7b23a1fa1de9
-release: bfd0d58905f6ffb2963d967605b53b99e8a5e90e
+beta: 390e90129626f031f468c84d978419fcd512eae7
+central: 44910f21eb087422dbc3e28ac1e819797bc45f0b
+esr115: bd4fb4aebf03b8c20f66ba05e5d1b378a51b92ed
+esr128: 9ae18a146984c0398f5a3d4813f96f4ef297e232
+release: 4a45f815e43e80ee533d2db42fb787314e057126
diff --git a/experimenter/experimenter/features/manifests/firefox-desktop/experimenter.yaml b/experimenter/experimenter/features/manifests/firefox-desktop/experimenter.yaml
index 452b4974be..8c16894b3a 100644
--- a/experimenter/experimenter/features/manifests/firefox-desktop/experimenter.yaml
+++ b/experimenter/experimenter/features/manifests/firefox-desktop/experimenter.yaml
@@ -1307,6 +1307,13 @@ pocketNewtab:
         pref: browser.newtabpage.activity-stream.newtabWallpapers.highlightCtaText
       description: >-
         Changes the wallpaper feature highlight cta
+    currentWallpaper:
+      type: string
+      setPref:
+        branch: user
+        pref: browser.newtabpage.activity-stream.newtabWallpapers.wallpaper
+      description:  >-
+        Changes the currently selected wallpaper
     weatherLocationSearch:
       type: boolean
       setPref:
diff --git a/experimenter/experimenter/features/manifests/firefox-desktop/v136.0.0/experimenter.yaml b/experimenter/experimenter/features/manifests/firefox-desktop/v136.0.0/experimenter.yaml
index 452b4974be..8c16894b3a 100644
--- a/experimenter/experimenter/features/manifests/firefox-desktop/v136.0.0/experimenter.yaml
+++ b/experimenter/experimenter/features/manifests/firefox-desktop/v136.0.0/experimenter.yaml
@@ -1307,6 +1307,13 @@ pocketNewtab:
         pref: browser.newtabpage.activity-stream.newtabWallpapers.highlightCtaText
       description: >-
         Changes the wallpaper feature highlight cta
+    currentWallpaper:
+      type: string
+      setPref:
+        branch: user
+        pref: browser.newtabpage.activity-stream.newtabWallpapers.wallpaper
+      description:  >-
+        Changes the currently selected wallpaper
     weatherLocationSearch:
       type: boolean
       setPref:
diff --git a/experimenter/experimenter/features/manifests/focus-ios/.ref-cache.yaml b/experimenter/experimenter/features/manifests/focus-ios/.ref-cache.yaml
index 5b498ec8a9..122a98e252 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: 20fe2827f3251277b648cf1f214e140ab8faea91
+main: 789523a3422792c030e32d9edab757ba8bf8bb23
 release/v124: da250bed9e19c4978d4400d6d404cb312e33636e
 release/v125: a3e1e0773a00009e08d95726fd518ab642255ccd
 release/v126: 6f305409b4af68e8404401a2caad8cb0da9a0494
@@ -24,5 +24,5 @@ release/v130: a48ec1b1f0219e1987bb38bc4f6b838f37dc6f12
 release/v131: 7444df581b62d357df12ddc3c90d821d940efbb8
 release/v132: cb318d0061ec6354167ecc1968020d5d75f1bffc
 release/v133: 7c651ce29e94c6389af7a69ec6b5c44251976e92
-release/v134: 83fa5a2cbf8a2671f7c7e7c7cb60ab219e782ec8
+release/v134: b536f3f9e3b1426a72f9c7a12230f682ee96ce08
 release/v135: 1e11eb62e9d6fb91c030326111b229422c9637d5
diff --git a/experimenter/experimenter/features/manifests/ios/.ref-cache.yaml b/experimenter/experimenter/features/manifests/ios/.ref-cache.yaml
index 363949d682..cf161683c2 100644
--- a/experimenter/experimenter/features/manifests/ios/.ref-cache.yaml
+++ b/experimenter/experimenter/features/manifests/ios/.ref-cache.yaml
@@ -1,4 +1,4 @@
-main: 20fe2827f3251277b648cf1f214e140ab8faea91
+main: 789523a3422792c030e32d9edab757ba8bf8bb23
 release/v117: 43b690c450066d4dde1b2ccb93ed3714d244d502
 release/v118: 89a7ea3c3372e5a4ef5b3c5b85499d26198d0524
 release/v119: 7dc381f991c6d2a983c3ba7f0cffd880e8c29e7b
@@ -16,7 +16,7 @@ release/v130: a48ec1b1f0219e1987bb38bc4f6b838f37dc6f12
 release/v131: 7444df581b62d357df12ddc3c90d821d940efbb8
 release/v132: cb318d0061ec6354167ecc1968020d5d75f1bffc
 release/v133: 7c651ce29e94c6389af7a69ec6b5c44251976e92
-release/v134: 83fa5a2cbf8a2671f7c7e7c7cb60ab219e782ec8
+release/v134: b536f3f9e3b1426a72f9c7a12230f682ee96ce08
 release/v135: 1e11eb62e9d6fb91c030326111b229422c9637d5
 v117.0: 3b275ab1e4ccef769d84437033c0c68acfd2df8a
 v117.1: 55ddcf473a65d106d43f6d2ae5af4076d6d03688