diff --git a/src/ZenTabUnloader.mjs b/src/ZenTabUnloader.mjs
index fc7d070..cbf2397 100644
--- a/src/ZenTabUnloader.mjs
+++ b/src/ZenTabUnloader.mjs
@@ -6,6 +6,9 @@
   XPCOMUtils.defineLazyPreferenceGetter(lazy, 'zenTabUnloaderTimeout', 'zen.tab-unloader.timeout-minutes', 20);
 
   XPCOMUtils.defineLazyPreferenceGetter(lazy, 'zenTabUnloaderExcludedUrls', 'zen.tab-unloader.excluded-urls', '');
+  
+  XPCOMUtils.defineLazyPreferenceGetter(lazy, 'zenTabUnloaderRamThreshold', 'zen.tab-unloader.ram-threshold', 70);
+
 
   const ZEN_TAB_UNLOADER_DEFAULT_EXCLUDED_URLS = [
     '^about:',
@@ -75,7 +78,16 @@
       this.interval = setInterval(this.intervalListener.bind(this), ZenTabsIntervalUnloader.INTERVAL);
       this.#excludedUrls = this.lazyExcludeUrls;
     }
-
+		
+	async getRAMUsage() { // RAM usage ceck
+      try {
+        const memoryInfo = await Components.utils.getMemoryInfo();
+        const totalPhysicalMemory = memoryInfo.total;
+        const usedMemory = memoryInfo.resident;
+        return (usedMemory / totalPhysicalMemory) * 100;
+      }
+    }
+	
     get lazyExcludeUrls() {
       return [
         ...ZEN_TAB_UNLOADER_DEFAULT_EXCLUDED_URLS,
@@ -113,6 +125,12 @@
       if (!lazy.zenTabUnloaderEnabled) {
         return;
       }
+	  // Check RAM usage before proceeding
+      const ramUsage = await this.getRAMUsage();
+      if (ramUsage < lazy.zenTabUnloaderRamThreshold) {
+        return; // Don't unload tabs if RAM usage is below threshold
+      }
+
       const currentTimestamp = Date.now();
       const excludedUrls = this.excludedUrls;
       const tabs = gBrowser.tabs;