maybe your bookmarks file is corrupted form the other version, try this fix on my earlier post: https://connect.mozilla.org/t5/discussions/update-to-firefox-developer-edition-october-2024-results-in-the/m-p/72778/highlight/true#M27815I did this on ve...
I had this issue too. I was able to recover by doing the following for macOS, its basically a downgrade and import bookmarks thing:- download the `131.0b9` version from here https://download-origin.cdn.mozilla.net/pub/devedition/releases/131.0b9/mac/...
