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I tried Linux x64/FF23 and FF Nightly on a clean profile, and both leaked insane amounts of memory on this page, hundreds of KiBs per second. Interesting that according to about:memory, memory used by tab with choir.io stayed stable, but "heap-unclassified" grew uncontrollable. Bug in Firefox?

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This is fascinating. Thanks for sharing.

My gut feeling is that those leaks are the "socket connections" that Firefox hasn't garbage collected yet. The demo you are seeing is using long poll so there might be some good number of socket churns.

FWIW, WebSocket support is high on our priority list. We just need to find the time to implement that.

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