Thread regarding Hartig Drug

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Are my thread alerts lost when I close my browser?

The behavior is browser dependent, but in all common modern browsers it should persist between sessions (i.e. if you close your browser and then come back to the site in a new browser session).

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You can follow up to 50 threads at a time. If you try to add more than that limit, the last one on the list (sorted by reply activity) will be automatically unfollowed.