A newer version of Mozilla Firefox is available.Or, Learn More About Mozilla Firefox
Full user review
"FF hasn't been as stable since version 3.6.x"
Free and works well most of the time but has become more unstable since version 3.6x
Freezes a bit with extensions that never had issues with it in older versions, perhaps it's a development problem. Flash crashes a bit and doesn't always work well. This is coming from a longtime FF user.