Browser is using too much memory and slowing down Mac
Browsers use memory for each open tab and extension. Close unused tabs and remove extensions you don't actively use. This brings memory back to normal in under 5 minutes.
Modern browsers run each tab and extension as a separate process. With 30 tabs open, a browser can use 4–6 GB of RAM on its own. If your Mac has 8 GB total, that leaves almost nothing for other apps. Closing unused tabs and removing extensions is the quickest fix.
Risk: Low
⏱ 5–10 minutes
Beginner
⚡ Before you start
- ✓Have Activity Monitor ready to check memory usage (Applications → Utilities → Activity Monitor)
- ✓Know which browser you're using (Safari, Chrome, or Firefox)
- ✓Have 5 minutes to close tabs and check if memory improves
Fix-IT-Bot will walk you through each step, just tap, no typing needed.
Skip, I just want a technicianCommon mistakes to avoid
- Buying more RAM before closing tabs — closing tabs is free and works immediately
- Not restarting the browser — memory accumulates over days, restarting clears it
Signs you need professional help
- If browser memory usage is still high after closing tabs and disabling extensions, give us a call and we'll identify problematic websites or discuss upgrading your RAM.
Book a technician
We can fix most issues remotely in 15 minutes. Book your weekend slot and we handle the rest.
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