Icon base by Lorc under CC BY 3.0 with modifications to add a gradient
Libewrolf is a FF fork, Vivaldi is a chromium one. So they inherit all the differences between the two (edit: including the limit/support for extensions)
For a FF-based browser, I've chosen Waterfox (which works perfectly with uBO) and for chromium, I use Vivaldi.
Hm I haven't heard of Waterfox. So that's as well supported and reliable as the other two?
LibreWolf is more privacy focused and has more patches for privacy there is a massive difference in privacy, i use LibreWolf if you want more privacy go with LibreWolf, if you like chromium based browsers more go with vivaldi LibreWolf is also foss and vivaldi isn't, i recommend LibreWolf personally.
Vivaldi is not free and open source software, so for that reason alone it's a good idea to stay away from it. There are so many FOSS browsers available nowadays.
one is based on Chromium and is not open source, the other is a Firefox fork and is open source. LibreWolf definitely focuses more on privacy with a more anti fingerprinting stuff.
Another good one I like is Floorp. The largest downside to me is the foxless icon, but other than that, it offers a bunch of UI customisation and has Mozilla’s telemetry stuff disabled by default. If you want something more privacy-focused and/or don’t like that there is no fox in the icon, go for LibreWolf (wolves are just as cool as foxes!)
Vivaldi and privacy shouldn't even be in the same sentence. They haven't been caught in any scandals /yet/, but the browser's nonfree garbage and their reason for keeping it that way comes off as obnoxious imo.
There are two distinct things to optimize for here: your immediate privacy, and the future of a non-corporate web.
If all you care about is the former, then do... whatever. But if you also care about the latter, you cannot use a browser that supports the Chromium monopoly. That means using any Firefox fork. Personally I use Firefox itself because it's Mozilla that employs a paid security team, whose work all the forks are freeloading off.
Mozilla Firefox... the wolf in sheep's clothing... since Mitchell Baker left the leadership position last year, Mozilla has been financially oriented. The focus is on AI, user data is processed and so on. Mozilla can no longer be recommended with a clear conscience.
A web browser is the space shuttle of consumer software. The Gecko rendering engine alone has an enormous attack surface. Which of these forks is contributing security patches to keep it secure?
I use librewolf and zen Browser. but I don't want to recommend any of them because there are other good alternatives too. But especially the popularity of librewolf has also made it a "target" by malware appearing in the aur "librewolf-some name extension", which was probably also installed.