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→8. Memory usage
* Use tools/get_about_memory.py to get a memory reports dump while the app is running -- both shortly after start-up, and after using the app for a while.
* Load the dumps in about:memory in desktop Firefox. Check for any measurements that seem to be excessive, particularly "heap-unclassified".
* If "heap-unclassified" is high, re-run tools/get_about_memory.py with a [https://wiki.mozilla.org/Performance/MemShrink/DMD DMD-enabled] build, which will produce data that can be used to understand where additional memory reporters need to be added.
== 9. Profiling ==
