Thank you for being such a long-time user. Unfortunately Maskme has been end of life for years and we've made dozens of attempts to migrate users over to avoid situations like these. We care *passionately* about every customer (as most of the reviews here can attest to) and are deeply troubled by this situation you have reported. I recommend rolling back to your pre-quantum firefox and then migrating to Blur before upgrading - that way we can ensure your data is safe and secure. Please contact us at blur-support [at] get abine [dot] com and ask for Robin so we help.