diff --git a/apps/selenium/selenium-grid.yaml b/apps/selenium/selenium-grid.yaml
index 7f207c0..62d84a1 100644
--- a/apps/selenium/selenium-grid.yaml
+++ b/apps/selenium/selenium-grid.yaml
@@ -132,13 +132,18 @@ spec:
           initialDelaySeconds: 10
           periodSeconds: 5
           timeoutSeconds: 5
+        # Hub baseline working set ~766Mi on 2026-05-25 (75% of prior 1Gi
+        # limit). Bump to 1.5Gi / 1Gi to keep ~50% headroom; matches the
+        # stampede-buffer pattern documented for multus
+        # (feedback_k8s_cni_multus_sizing). CPU left alone — observed 54m
+        # against a 500m limit, no contention.
         resources:
           limits:
             cpu: 500m
-            memory: 1Gi
+            memory: 1536Mi
           requests:
             cpu: 250m
-            memory: 512Mi
+            memory: 1Gi
 ---
 apiVersion: apps/v1
 kind: Deployment
@@ -198,13 +203,18 @@ spec:
             port: 5555
           initialDelaySeconds: 15
           periodSeconds: 5
+        # Chromium-based browser node. Bumped from 1Gi -> 2Gi (req 512Mi
+        # -> 1Gi) on 2026-05-25 — Edge had 51 OOMKills in 5d on the
+        # original 1Gi cap (~1 OOM every 2.4h), and Chrome at maxSessions=2
+        # was running 684Mi idle on the same cap. Matches the Firefox node's
+        # tested-stable 2Gi limit. CPU unchanged.
         resources:
           limits:
             cpu: '1'
-            memory: 1Gi
+            memory: 2Gi
           requests:
             cpu: 500m
-            memory: 512Mi
+            memory: 1Gi
         volumeMounts:
         - mountPath: /dev/shm
           name: dshm
@@ -378,13 +388,18 @@ spec:
             port: 5555
           initialDelaySeconds: 15
           periodSeconds: 5
+        # Chromium-based browser node. Bumped from 1Gi -> 2Gi (req 512Mi
+        # -> 1Gi) on 2026-05-25 — Edge had 51 OOMKills in 5d on the
+        # original 1Gi cap (~1 OOM every 2.4h), and Chrome at maxSessions=2
+        # was running 684Mi idle on the same cap. Matches the Firefox node's
+        # tested-stable 2Gi limit. CPU unchanged.
         resources:
           limits:
             cpu: '1'
-            memory: 1Gi
+            memory: 2Gi
           requests:
             cpu: 500m
-            memory: 512Mi
+            memory: 1Gi
         volumeMounts:
         - mountPath: /dev/shm
           name: dshm