diff --git a/src/js/pagestore.js b/src/js/pagestore.js
index 4ddc73b60..615515a72 100644
--- a/src/js/pagestore.js
+++ b/src/js/pagestore.js
@@ -41,10 +41,6 @@ const µb = µBlock;
 
 /******************************************************************************/
 
-// To mitigate memory churning
-const netFilteringCacheJunkyard = [];
-const netFilteringCacheJunkyardMax = 10;
-
 const NetFilteringResultCache = class {
     constructor() {
         this.init();
@@ -58,14 +54,6 @@ const NetFilteringResultCache = class {
         return this;
     }
 
-    dispose() {
-        this.empty();
-        if ( netFilteringCacheJunkyard.length < netFilteringCacheJunkyardMax ) {
-            netFilteringCacheJunkyard.push(this);
-        }
-        return null;
-    }
-
     rememberResult(fctxt, result) {
         if ( fctxt.tabId <= 0 ) { return; }
         if ( this.results.size === 0 ) {
@@ -155,10 +143,7 @@ const NetFilteringResultCache = class {
     }
 
     static factory() {
-        const entry = netFilteringCacheJunkyard.pop();
-        return entry !== undefined
-            ? entry.init()
-            : new NetFilteringResultCache();
+        return new NetFilteringResultCache();
     }
 };
 
@@ -218,6 +203,7 @@ const PageStore = class {
         this.journalTimer = null;
         this.journalLastCommitted = this.journalLastUncommitted = undefined;
         this.journalLastUncommittedURL = undefined;
+        this.netFilteringCache = NetFilteringResultCache.factory();
         this.init(tabId, context);
     }
 
@@ -261,7 +247,6 @@ const PageStore = class {
         this.popupBlockedCount = 0;
         this.largeMediaCount = 0;
         this.largeMediaTimer = null;
-        this.netFilteringCache = NetFilteringResultCache.factory();
         this.internalRedirectionCount = 0;
         this.extraData.clear();
 
@@ -327,7 +312,6 @@ const PageStore = class {
             this.largeMediaTimer = null;
         }
         this.disposeFrameStores();
-        this.netFilteringCache = this.netFilteringCache.dispose();
         this.init(this.tabId, context);
         return this;
     }
@@ -337,13 +321,13 @@ const PageStore = class {
         this.title = '';
         this.rawURL = '';
         this.hostnameToCountMap = null;
+        this.netFilteringCache.empty();
         this.allowLargeMediaElementsUntil = 0;
         if ( this.largeMediaTimer !== null ) {
             clearTimeout(this.largeMediaTimer);
             this.largeMediaTimer = null;
         }
         this.disposeFrameStores();
-        this.netFilteringCache = this.netFilteringCache.dispose();
         if ( this.journalTimer !== null ) {
             clearTimeout(this.journalTimer);
             this.journalTimer = null;
diff --git a/src/js/tab.js b/src/js/tab.js
index d0e64bcb3..ea7286251 100644
--- a/src/js/tab.js
+++ b/src/js/tab.js
@@ -887,6 +887,7 @@ vAPI.tabs = new vAPI.Tabs();
     // https://github.com/chrisaljoudi/uBlock/issues/516
     //   If context is 'beforeRequest', do not rebind, wait for confirmation.
     if ( context === 'beforeRequest' ) {
+        pageStore.netFilteringCache.empty();
         return pageStore;
     }