LibreWolf

Pros: Librewolf has a friendly, uncluttered and 'sensible' appearance. It is as fast as Midori, and it is possible to have a blank home page, unlike Midori.

Cons: Unfortunately, it doesn't import bookmarks from Opera, even though it says that it does.

Overall: Although I liked its lack of bells, frills and whistles, I decided not to use it, because I couldn't go through the whole performance of importing bookmarks 'manually'.

Pros: Best privacy browser of all times in terms of privacy, speed, ads blocking, etc. LibreWolf is better than hardened Firefox and with no effort. Beside, we can compile LibreWolf if we want. With this browser we know what it is doing in the background. There is no browser in the market that compete with it.

Cons: I don't find in this browser any cons. All settings can be adjusted accordingly to the necessities.

Overall: Use it. Enjoy it. Is difficult to find a browser like this. If you appreciate privacy and speed use LibreWolf.

Pros: - Very strong privacy protection by default, can be hardened graphically through specific Librewolf config in the settings or via addons
- Helpful community
- Integrates upstream updates fast
- High availability for linux distros

Cons: - Can break certain sites that invade your privacy

Overall: A great Firefox fork, very useful now that Firefox has integrated ads and more telemetry. Would recommend 100%, but do keep Firefox or ungoogled-chromium at hand for sites that break (e.g. Netflix, Disney+).