Firefox is always 100% cpu usage any advice how to solve this?
By bulastika
@bulastika (5966)
Philippines
March 2, 2012 5:40pm CST
If I run malware and antivirus I did not find any virus or malware in my system. But why every time I run a browser like firefox I end up having 100% cup usage. I really don't understand why. And its going to hang for few minutes before its goes down to 24% cpu average percentage uses. I'm wondering if its my modem or wifi that has a problem or its my computer hardware or something.
5 responses
@SinfulRose (3527)
• Davao, Philippines
11 Mar 12
I need more information than this. What is the capacity of your CPU? Do you have lots of extensions running on your firefox browser? Um, how to say this in simple terms? Ah, did you install many toolbars into your firefox browser?
@SinfulRose (3527)
• Davao, Philippines
14 Mar 12
There really are times that the Firefox does this kind of thing.
It's in the program, I think, where they have to load program instruction into the browser itself in a bulk on the first opening of the browser.
Try to think of it like this, when you open your FF browser, FF immediately takes the resources it needs to try to accommodate you in a best possible way according to it's program. Later when it got what it needs, it's ready to take your commands...Well according to my experience that's about it.
Unless if I know more about your problem, I might be able to help out...
Before I forget? How about bookmarks? Did you have a bunch of them already? Cookies? History? Try to clear them a bit, that might help. Ever heard of CCleaner? Try to look at it and see if it can help.
@SinfulRose (3527)
• Davao, Philippines
19 Mar 12
Of course it'll be compatible.
Microsoft created Internet Explorer.
Just out of curiosity, have you tried uninstalling and re-installing the Firefox? And instead of using Firefox, have you tried using chrome for at least one time? It would be best if you have IE, FF and chrome with you, at least that's what my teacher told us when I was in my web designing class...Maybe this advice will help you out a bit?
Microsoft created Internet Explorer.
Just out of curiosity, have you tried uninstalling and re-installing the Firefox? And instead of using Firefox, have you tried using chrome for at least one time? It would be best if you have IE, FF and chrome with you, at least that's what my teacher told us when I was in my web designing class...Maybe this advice will help you out a bit?@bulastika (5966)
• Philippines
19 Mar 12
In my case the longer I run firefox the more its eats my cpu and also my virtual memory. I don't know why but I think its better that we use explorer. Although when I use explorer the result is the same At least I know that my OS XP is compatible to internet explorer.
@slovenc1 (2089)
• Slovenia
27 Jul 12
Check if plugins need updates at http://www.mozilla.org/en-US/plugincheck/ If you don't have much of a computer it's no wonder cause browser can reach 100% especially that thing called plugin container. Also if you open several tabs at once it'll be slower. Another tip is that I've read in many forums it is recommended to restart Firefox after a while say 1 hour if you do a lot of browsing cause it gets slower with time. Hope any of these help. Also remove plugins that are not needed. Good luck
@bulastika (5966)
• Philippines
1 Aug 12
Thanks. I will try to restart my firefox once every three hours. My problem is not really because of firefox. If I turn off flush its seems my FF just work just fine. So in short for me its because of the problem in FF and flash compatibility that make my FF works slow and even hangs up.
@surfer222 (1714)
• Indonesia
3 Mar 12
did you use add-ons? try to turn them all of... if the problem gone, then it's some of the add-ons that have a problem... then you can try to turn them back on, one add-on at a time to see which add-on that cause the problem...
@bulastika (5966)
• Philippines
11 Mar 12
I already done that also. But so far it does not change anything. I disable and the speed is the same. I'm enable and the speed is the same. I'm hoping that this problem will be fixed soon. right now I'm suspecting my wifi. But I really don't know if wifi can make your browser hang.
@varier (5685)
• Indonesia
19 Mar 12
Not sure what actually had happened, if there are no add-ons or extension installed on your Firefox. And I am quite sure that Wifi connection should have nothing to do with CPU usage.. 
What is your anti virus, btw? Is it AVG anti virus *just curious with something, though*
And what if you only open one or two tabs with Firefox.. Will the CPU usage also high?
What is your anti virus, btw? Is it AVG anti virus *just curious with something, though*
And what if you only open one or two tabs with Firefox.. Will the CPU usage also high? @bulastika (5966)
• Philippines
19 Mar 12
I changed my antivirus from avg, avast, avira and still the same result. And yes sometimes even with one site open its still eats up lots of cpu usage.
Anyway about wifi connection.Its can sometimes do eat up cpu usage. If your wifi has defects and keep on sending lots of volume of informations its going to eat your virtual memory and your cpu.
@erjnsimon (1191)
• Makati, Philippines
3 Mar 12
i think you should decrease your start up programs or you should stop your anti-virus application protecting your computer even just for 15 minutes. for better results try to use tune-up utilities this will help your computer to be optimize easily and it can fix errors on your computer. in addition, sometimes when your cpu usage runs up to 100% in using the application, this means also that the version of the software you are using is not compatible with your systems specifications. try to review the requirements and your system before installing software. :)
@bulastika (5966)
• Philippines
11 Mar 12
I don't know but I don't think its has something to do with start up. because its only eats my cpu when I open a site and sometimes it load fast and sometimes its seems take hours to load. that's why I don't know how to solve this. also I already tried to chance antivirus many times and its still have the same results.
