Created attachment 630420 [details] Testcase See attached testcase. If I run it for a bit, I get memory growth by tens to hundreds of megabytes. If I then open about:memory, it's showing as all being string-chars from the compartment of the testcase. As soon as I trigger a GC (eg. reload about:memory a few times) it all goes away.
I let this run overnight and memory usage seemed pretty stable. Is this still a problem, Boris?
Seems to be ok now.