After running the wall display on a Windows 10 machine under Firefox for a few hours we noticed that the memory usage of the Firefox process was ~13Gb (this was the only tab open). This causes Firefox to issue an unresponsive script warning and hang.

We restarted the process, reloaded the page and noticed that the memory usage climbs quite rapidly and does not stop accumulating.

I have attached 2 memory snapshots from Firefox (I have a third but it is too large to attach), which were taken roughly 1 minute apart.