Installation Statistics
Note: AMIs are only a rough estimate of the number of active Thunderbird installations each month, they are not a count of users. Learn More
Weekly AMI Estimates
Note: ADIs are only a rough estimate of the number of active Thunderbird installations each day, they are not a count of users. Learn More
Daily ADI Estimates
Note: ADIs are only a rough estimate of the number of active Thunderbird installations each day, they are not a count of users. Learn More
Note: These stats do not include Lightning.