Firefox to use Google secure search by default
Starting this month, you can expect to see some changes in your Google Analytics data. Unfortunately, you will notice that the “not provided” category in your Google Analytics will grow.
Mozilla has officially stated that Firefox will soon be switching to a Google’s SSL search by default for their in browser search.
Since Firefox holds around 25% of browser traffic at the moment, you can expect the “not provided” number to increase in the coming days.