This has been working great until Firefox 107 (Mac OS Catalina). Now, as another user also observed, it has a massive memory leak that eats up all the RAM, loads the CPU, and eventually crashes the machine. I really hope my comment is seen and this gets fixed soon. Other than that, it's been great and mostly reliable. It did crash and fail to load about a year ago and I had to manually re-add all of my wallets and tokens again, but hopefully that won't happen again.