Firefox won't start at all

Godzillaismyname

Estimable
Mar 19, 2015
2
0
4,510
When i click on the icon there is a small circle like loading and then nothing at all. i tried all the steps from mozilla official page and nothing Works. i tried everything and nothing Works. I installed Chrome and things were even funnier. not a single Internet video Works and chrome crashes in 10 seconds. What should i do? I use win7. and mozilla died. Thank you