Incomplete Favorites import from Firefox

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  1. Trying to migrate to Brave v1.76.73 from Firefox v136.0
    With Brave loaded I tried using the import from another browser function. At first this appeared to work but then over the next couple days I discovered multiple favorites and folders of favorites missing in Brave.
  2. I deleted all favorites in Brave, exported FF favorites to file, imported file to Brave, same problem.
  3. Other than this loss of favorites I’m really impressed with Brave but I have hundreds of favorites and this problem will prevent me from using Brave if I can’t find a solution to importing ALL my favorites successfully. I’m wondering if anyone else has experienced this issue and if any solution exists. I searched for such but found nothing similar. Maybe I’m not familiar enough with this community knowledge base to search well. Any suggestions would be greatly appreciated.