Everyone has, or should have some type of antivirus software installed on their computer.With the constant barrage of viruses and spyware being created and sent out on the Internet you need to make sure that your software is up to date with the most current virus definitions so you don't become a victim.Pages that used to takt one second or less to load now take from two to ten minutes.If the Places Maintenance extension can't repair the places.sqlite database file then remove all places.sqlite file(s) in the Firefox profile folder to make Firefox rebuild the places.sqlite database file from the most recent JSON backup in the bookmarkbackups folder.
If you have Norton installed on your computer, it can be manually updated by using the Live Update feature of the program or by manually downloading updated computer virus definitions from the Symantec website.
On Wednesday Symantec said that web attacks increased 30 percent last year, and the trend doesn't show any signs of slowing down.
To combat is growing threat, the company has updated its line of Norton-based defense including Norton 360 Multi-Device, Norton 360, Norton Internet Security and Norton Anti Virus.
This way you will not need to download it on every computer.
You can go to the following link to download the update file.