We are going to control GC frequency / high-water-mark of Tracemonkey via about:config page as below. We are able to limit memory consumption of Tracemonkey via "javascript.options.mem.high_water_mark" and "javascript.options.mem.gc_frequency". The option is set as 32 MB. However, we can change the value with new threshold when we run firefox on embedded devices. For example, let's consider that