Being a Linux OS users I have experience worse performance of Mozilla Firefox on my PC. The biggest problem with this very browser is that it hangs a lot. Even I am using a good Internet connection but still Mozilla takes too much time in loading. It even makes my system slow. Whenever, I try to open 5 or 6 time at a time the browser crashed automatically its really very annoying. Moreover, its also quite difficult to find appropriate plug in for Mozilla on Linux. Installing a them in this browser is really a headache as it make it even worse. For me Chrome it much better than Mozilla Firefox.