>braveDo not use it. Brave is the single piece of software which infuriates me the most because of the unfounded claims about its supposed security being repeated by people who call themselves "privacy experts". At least with other fake privacy software like common VPN programs it's normies selling it to normies. Brave's "Shields" feature is completely useless and allows most tracking scripts to function without issue. It actively collects telemetry on you if you do not opt out. If you do not opt out it also sends your browsing data to Jewgle via its "safe browsing" feature. It also sends a bunch of unsolicited requests to Google and Cloudflare which are impossible to disable. On top of that, there is their stupid crypto integration which wants you to watch advertisements in exchange for their worthless "BAT" (shit) tokens.
>firefoxGood if and only if you use a hardened user.js config, such as arkenfox. If you do not, it is malware. The details of Mozilla's evils are too long to type out here, check out this article if you are interested
https://digdeeper.club/articles/mozilla.xhtml)
>librewolfIt is actually good, the best criticism its detractors can come up with is that it is made by trannies, which may be true (I myself never bothered to check the so-called 'gender identity' of its developers). Keep in mind that it is effectively just Firefox with a user.js config and ublock origin installed by default.
If you wish to use a Chromium-based browser, the only one I can recommend is Ungoogled-Chromium. There are some others, like "Helium Browser", which I have heard good things about but I cannot attest to their quality myself. If you want to use a Firefox deriviative different than Librewolf, the only other decent option I am aware of is GNU Icecat. If you wish to use something different than the "giants", you can use Pale Moon or Basilisk (PaleMoon deriviative) but note that they are way behind the mainstream browsers in terms of web standards implementation (so web sites may not work properly) and security features, such as sandboxing. I myself use Pale Moon with some changes to the configuration, described here:
https://spyware.neocities.org/guides/palemoon (yes, I am aware this is an ancient website but this particular guide is still relevant to latest Pale Moon versions) because I consider its lack of feature parity with so-called "modern" browsers to be a feature rather than a bug, and I refuse to use any web sites which are too needlessly complex ("modern") for the browser to handle.