Firefox in Windows 7 takes CPU Usage 100%

[Xander]

I am having a computer in which i installed the Windows 7 Licensed Copy.... Over that i have a internet connection... I use Mozilla Firefox 3.5 version for browsing... But from from some days i am facing a issue in it... Actually when i open Firefox more then 12 tabs it starts taking the CPU usage of 100%..... Does anyone know why this is happening....????

[Jackson2]

There are many causes of firefox taking 100% CPU usage.... One of which is Add-on installed in Firefox... I think you might be having lots of Add-ons installed in Firefox.... Sometime firefox also uses more than 200MB but when using multiple tabs opened in firefox. But since uninstalling all the add-ons , its uses some what less space. I think you got the solution because 99% of the time most of the people have this issue because of the lots of Add-ons installed...!

[Techno01]

I have found some similar tabs here i think you must have a look at it... I think this is very much help full i have used it... This are all what you need to do it... I am definitely sure that your CPU usage will come down to 40%...

Reduce Firefox Memory Usage
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Reduce Firefox Memory Usage
Mozilla Firefox consumes lots of memory

[deveritt]

I thing there are many such causes which has done this... But still people use the same as the firefox is a user free & easy technology for browsing... I will ask you to check for the Java application running on back hand... Also you must always clear all the Cache & cookie files which are saved in the temp folder... Also will ask you to remove the temp files which are on the computer...! & i am sure this will definitely improve your performance & will then definitely not take the CPU Usage of 100%...!