Old: Text about:memory is our main memory profiling tool.  You can copy and paste the memory reports shown by about:memory and they will reproduce nicely — so long as the displaying text is a fixed-width font — as the following example shows. Main Process Explicit Allocations 536.22 MB (100.0%) — explicit ├──217.45 MB (40.55%) — … Continue reading Gzipped JSON is now the preferred format for attaching memory report data to bugs