How to Fix Microsoft Edge High Memory Usage (Limit RAM Easily)

Microsoft Edge has become a top browser choice for many Windows users, but it’s also known to consume large amounts of RAM—especially when multiple tabs, extensions, or features are active. High memory usage can lead to system slowdowns or instability, particularly on mid-range or older hardware.

Fortunately, Edge now includes built-in resource controls that let you limit its RAM usage, along with several other optimization tools to help you keep performance smooth and responsive.

In this updated 2025 guide, we’ll walk you through how to control Edge’s memory consumption using new settings and practical techniques.

1. Set a RAM Limit in Edge Using Resource Controls

Available from Edge version 125 and above, this powerful feature lets you cap how much memory the browser is allowed to use.

Steps to Enable Resource Controls in Microsoft Edge:

1- Open Edge and click the three-dot menu (⋯) in the top-right corner. Select Settings.

2- Go to System and performance from the sidebar.

3- Scroll down to Manage your performance, then enable Resource controls.

4- Choose whether to apply the RAM limit Always or Only when gaming.

Use the slider to set your preferred RAM limit.
⚠️ Avoid setting the limit too low, or you might experience excessive tab sleeping or page reloads.

Once enabled, Edge will try to stay within your defined memory limit. You can monitor usage via the Browser Essentials sidebar.

Note: If you don’t see this feature, make sure you’ve updated Edge to version 125+. You can also force-enable it by adding this flag to your Edge shortcut:

--enable-features=msEdgeResourceControlsRamLimiter

After adding the flag, restart Edge. If it still doesn’t appear, try disabling Startup Boost in edge://settings/system.

2. Use Sleeping Tabs to Save Memory Automatically

Edge includes a built-in Sleeping Tabs feature that automatically suspends inactive tabs to free up RAM without closing them.

How to Enable Sleeping Tabs:

1- Navigate to Settings > System and performance.

2- Toggle on Save resources with sleeping tabs and optionally Fade sleeping tabs for visual cues.

3- Adjust how long a tab must be inactive before it sleeps (e.g., 5 minutes, 15 minutes).

💡 You can also press Shift + Esc to open Edge’s Task Manager and manually identify high-RAM tabs.

3. Close Unused Tabs and Windows

Each open tab consumes memory—even when idle. If you’re someone who hoards tabs, try closing those you no longer need.

• Bookmark important pages before closing.
• Use tab grouping or extensions like OneTab to save and manage sessions.

4. Disable or Uninstall Unused Extensions

Extensions offer extra features, but many run constantly in the background, increasing memory usage.

To Review and Manage Extensions:

1- Click the Extensions icon on the toolbar or go to edge://extensions.

2- Disable or remove any extensions you no longer use.

Restart Edge and monitor performance. Disabling even a few heavy extensions can lead to noticeable RAM savings.

5. Activate Efficiency Mode for Smarter Resource Usage

Edge’s Efficiency Mode helps reduce CPU and memory use by throttling background activity and sleeping tabs more aggressively.

How to Enable Efficiency Mode:

1- Go to Settings > System and performance.

2- Under Optimize performance, toggle on Efficiency mode.

3- Choose when it should activate:

• Always
• When plugged in
• When on battery

Efficiency Mode is particularly useful for laptops or low-spec systems.

6. Disable Hardware Acceleration and Startup Boost

Some performance features like hardware acceleration and Startup Boost can actually increase memory usage.

How to Turn Them Off:

1- Go to Settings > System and performance.

2- Toggle off:

• Use graphics acceleration when available

• Startup Boost

Restart Edge for changes to take effect. Disabling these can reduce background memory usage significantly.

7. Clear Cache and Browsing Data

Corrupted or oversized cache files can increase Edge’s memory footprint.

To Clear Cache in Edge:

1. Press Ctrl + Shift + Delete to open the clear data panel.
2. Set the time range to All time.
3. Check Cookies and other site data and Cached images and files.
4. Click Clear now.

⚠️ Note: This will sign you out of most websites.

8. Monitor Real-Time Memory Usage

To stay on top of your memory consumption:

• Use Edge’s Browser Essentials panel from the main menu.
• Or open Windows Task Manager via Ctrl + Shift + Esc and look for Microsoft Edge under the Processes tab.

If you’re still seeing high memory use despite optimizations, consider scanning for malware, disabling problematic extensions, or even reinstalling Edge.

Final Thoughts:

With Microsoft’s latest updates, managing Edge’s memory usage is easier than ever. Features like resource controls, sleeping tabs, and efficiency mode give you the tools to keep RAM consumption low without compromising your browsing experience.

Regular maintenance—like clearing cache, disabling unused extensions, and monitoring tabs—can make a significant difference, especially on low-memory systems.

Take control of your browser’s performance today and enjoy a faster, more stable experience on Windows 11.