UPDATE
It turns out I didn't lose all logins in Firefox, just a couple of major ones. It was very surprising. And this was after losing all in LibreWolf, so I thought it was all in Firefox, too. My bad.
As pointed out in the comments, LibreWolf is basically "Private Browsing Mode" by default. I did not know that. I turned that off, re-copied my profile, and I'm good to go.
Original Post
I just installed Librewolf (Flatpak) the other day, here's the sequence of events:
- Install Librewolf
- Run it once and close it.
- Copy the contents of my profile folder from Firefox to my new profile folder in Librewolf after deleting its default contents.
- Run Liberwolf and see that everything is good: bookmarks, logins, extensions, etc.
The next day I run Liberwolf and notice I'm logged out of every website that I normally keep logged in. I figured I probably failed to change some default privacy setting in the new browser and it wiped my logins.
So I open Firefox and I'm logged out of every website there, too! I still have all my bookmarks and such, so I know I didnt move my profile contents by accident.
What in the world happened? Why did I suddenly get logged out of everything in both browsers?
OpenSUSE Tumbleweed with btrfs.
This has never happend before. For example when I migrated from Windows to Linux I had no issues copying my profile. It's still active in Windows which I occassionally boot. Same with copying my profile to my Steam Deck.
That makes me wonder... I should go boot my SteamDeck to desktop mode and see if my profile there still has active logins. Windows, too.