Firefox (cause the computer) run very slow and display message about Javascript...

I have installed Firefox (latest vesion) in Windows XP Computer and It sometime run slow (and slow the computer at that time) so that I have to kill firefox job in taskmanager to run it again. Normally, when computer slow, the firefox show a message like "javascript..."
Please tell me how to fix this problem. Thanks!
haivnuni - [http://vnuni.net phần mềm bán hàng]

Ok, try to clean your PC with [https://www.piriform.com/ccleaner/download CCleaner], do deep defrag and optimization with [http://www.iobit.com/iobitsmartdefrag.html Smart Defrag], make sure you have space on your primary drive(where your OS is installed), test your memory with [http://www.memtest.org/ Memtest86+]. If this doesn't help probably most painless and fastest solution will be to reinstall your Windows. Also keep in mind that Windows XP is no longer supported by Microsoft, so if you are in position to move to a newer version of Windows would be a right thing to do. If you reinstall your OS, just update OS and install drivers before you install Firefox and test it then without any other software installed.

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