Moved from Firefox Dev Edition to Librewolf. No deal breakers yet.
Procedure to transfer over painlessly: Install and run Librewolf. On both browsers go Help > More troubleshooting information > profile folder > Open. Close both browsers. Delete everything inside the librewolf profile. Copy everything from Firefox Dev profile directory into Librewolf profile directory. Run Librewolf with "--allow-downgrade" once. First run was a tad slow with extensions doing some 'recombobulation'. You can now run Librewolf normally without the above allow downgrade option. Enjoy.
per-site zoom and auto-dark detection disabled unless about:config > privacy.resistFingerprinting set to false
Procedure to transfer over painlessly: Install and run Librewolf. On both browsers go Help > More troubleshooting information > profile folder > Open. Close both browsers. Delete everything inside the librewolf profile. Copy everything from Firefox Dev profile directory into Librewolf profile directory. Run Librewolf with "--allow-downgrade" once. First run was a tad slow with extensions doing some 'recombobulation'. You can now run Librewolf normally without the above allow downgrade option. Enjoy.
per-site zoom and auto-dark detection disabled unless about:config > privacy.resistFingerprinting set to false