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Everytime I do net surfing on my PC, I end up with a few dozens of tabs opened in my browser and my browser starts running very slowly, e.g. it takes about 5-6 seconds just to switch between tabs. So, I go to the task manager and check the browser's CPU usage. It's usually as high as 300-400 k. Why does the browser's CPU usage not decrease after I closed all my tabs but still have that browser opened? I'm a very lazy person and when i'm net surfing, I never close any of my tabs, I just keep opening new ones, so every 1-2 hours or so, I have to reboot my browser, otherwise my PC will slow down. I have tried different browers from IE to maxthon to firefox. They all have the same problem(I'm using a very old laptop though, but I still think the CPU usage should match with the no. of browser tabs). I'd like to know your thoughts and/or solutions on this issue. Thanks.

asked Jul 21 '11 at 00:37

coolguy2013's gravatar image


edited Jul 21 '11 at 03:01

zman's gravatar image



This is not a direct line to chris....

(Jul 21 '11 at 00:43) kevin ♦♦ kevin's gravatar image


(Jul 21 '11 at 01:05) catchatyou catchatyou's gravatar image

Grammar fixed.

(Jul 21 '11 at 03:01) zman zman's gravatar image

Make sure you clean out your temporary internet files, a quick Google will show you how to do that. Also, I recommend Google Chrome as a web browser, Google is constantly making changes to improve the speed of the browser. Also, Chrome runs each tab in a separate process, so if one tab crashes, the rest of the browser will still function.

answered Jul 21 '11 at 12:58

KylePolansky's gravatar image


The likely reason your browser opens with so many tabs in that when you reboot your browser by ending the process(es)(which I assume is how you did because of your outcome), your browser is likely to have a session saving function that stores your previously opened tabs and a session restoring function that reopens those stored tabs upon the next opening of the browser.

If you have more than 15 tabs opened at once as your computer is starting up, this will make it very slow and eventually your computer will be too slow to use. I once did what your claiming to be doing with my old laptop and now, it takes about 10 minutes to start it up and as a result, I moved on to another PC.

I advise you make use of the favorites bar if you have one. It will let you access your sessions whenever you want so you can close tabs when you need to.

answered Jul 21 '11 at 02:57

zman's gravatar image


hi zman,when I load my browser it does not open with any tabs. my problem is that during net surfing, when i close the tabs the browser's CPU usage does not go down, so it will eventually slow down my PC because I will open more and more tabs as I browse through the internet even if i have all of them closed after reading those webpages.I think the "return to previous session" feature you said is really on point, yes when I click that button the previously closed page would come up real quick like it's been saved somewhere. I think that might be cause of the problem, but as fas as I've seen all browsers have that feature, so does that mean this problem cannot be solved apart from getting a faster PC?

(Jul 21 '11 at 09:51) coolguy2013 coolguy2013's gravatar image

If your browser gives you the option of whether or not to restore your previously opened tabs, then just choose for it not to. That should fix your problem.

(Jul 22 '11 at 03:07) zman zman's gravatar image

This guy's just intense... But he isn't asking for our help, so... Chris, get in here!

answered Jul 21 '11 at 00:59

The%20Boss's gravatar image

The Boss

You say its an old PC, how much ram and what version of windows are you using?

I would say its probably a lack of ram for the amount of tabs you want to have open.

Install more ram or learn to use CTRL + W

answered Jul 21 '11 at 14:26

Lee%20Wood's gravatar image

Lee Wood

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Asked: Jul 21 '11 at 00:37

Seen: 1,386 times

Last updated: Jul 22 '11 at 03:07