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As with most native A/B tests, the binary probably ships with code for both functionalities. When the browser launches for the first time they generate a random
by TheCoreh 10y ago
As with most native A/B tests, the binary probably ships with code for both functionalities. When the browser launches for the first time they generate a random number, and if it's below a certain threshold you get variant A, above you get variant B. The information gets persisted on disk so it remains unchanged across sessions.
- theandrewbailey 10y agoIt seems that there is some communication back to Mozilla, since they claim that they can increase or decrease the number of users in each group over a week; that seems unlikely to come in the form of a new binary.
- gsnedders 10y agoNon-stable channels get frequent builds, so it's not implausible it's a new binary.