Unexplained data loss issue

[Brave-Matt]

Description

Please note that this issue has been ongoing for sometime now.

We have noticed a significant uptick in user reports concerning a random/unexplained loss of data in the browser. Based on these reports, it appears that the data in question can be anything stored locally/in the browser — from passwords, to bookmarks, to all browser profile data. This issue occurs across all [desktop] platforms.

We started tracking individual instances of this issue occurring in a document here: https://docs.google.com/spreadsheets/d/1Caau3LFaktSXv4vmecmTkQjr7XOtuaQK9G2ozol43_Q/edit?pli=1#gid=0

Please also note that the above document is not representative of all the reports received and that particular document is not quite up to date at this time. We do however have an ongoing Community thread where we have been collecting Community user reports, along with additional instructions for these users to follow and extra steps they can take to get us the data we need: https://community.brave.com/t/notice-unexplained-data-loss-issue/485498

I don't want this issue to continue to get pushed back and eventually get lost in the shuffle. Happy to assist and provide any additional data that might be helpful in resolving this.

cc @bsclifton @rebron