Brave crashes at startup, upon restart history and all open tabs are gone

Brave crashes very often - but not every time - on startup. I see 2 items appear on the taskbar. A few seconds later they disappear. When i restart, history is gone, the open tabs have all gone.

Running on Linux Mint 18.3.
Brave installed via command line with the instructions given on https://support.brave.com/hc/en-us/articles/360018666072-How-do-I-install-Brave-on-Linux-using-the-terminal-

Installed extensions:

  • WebRTC leak prevent
  • Cookie autodelete 3.0.2
  • Ublock origin
  • Inject simple vimeo downloader buttons
  • vimeo repeat and speed
  • privacy badger

History is not disabled.

This has been going on for months.