“Google Chrome ads started appearing next to Firefox search terms. Gmail & [Google] Docs started to experience selective performance issues and bugs on Firefox. Demo sites would falsely block Firefox as ‘incompatible’,” he said.

"All of this is stuff you’re allowed to do to compete, of course. But we were still a search partner, so we’d say ‘hey what gives?’ And every time, they’d say, ‘oops. That was accidental. We’ll fix it in the next push in 2 weeks.’