Why firefox is not working properly?

I was facing the same problem two months ago when my Firefox stopped working. There may be different reasons behind the stopping of your Firefoxor not installing problem. It may be happening due to some virus or it may behappening due to some of your OS files get corrupted or it may be happening dueto the software that you have installed recently. So for the proper checking ofthe reason behind the stopping of your Firefox. First of all check the statusof your antivirus. If it is updated and working very well than try to rememberthe software that you have recently installed. After that uninstall thatsoftware and try to rerun that. If your gadget resume its services than it isok. If still not than it is happening due to your OS get corrupted. For thatyou have to reinstall that. After that Try to install your Microsoft gadgetagain and check if it is working if yes than now your problem have removedpermanently.