I was a bit surprised that Firefox hasn't: https://www.google.com/trends/explore?q=firefox
but obviously it has a lot more inertia. (Or maybe everyone switches to DDG first, and THEN looks for Firefox, so Google Trends doesn't know about it...)
as of just now
also compare them: https://www.google.com/trends/explore?q=firefox#q=firefox%2C...
firefox jumped about as much as ddg recently, but that's a blip on firefox as a whole
(The part about everyone finding Firefox on DDG was a joke.)
I was a bit surprised that Firefox hasn't: https://www.google.com/trends/explore?q=firefox
but obviously it has a lot more inertia. (Or maybe everyone switches to DDG first, and THEN looks for Firefox, so Google Trends doesn't know about it...)