Install LibreWolf a fork of Firefox that is focused on privacy, security and freedom.
Add a dedicated repository.
$ echo "deb [arch=amd64 signed-by=/etc/apt/trusted.gpg.d/librewolf.gpg] \ http://deb.librewolf.net $(lsb_release -sc) main" | \ sudo tee /etc/apt/sources.list.d/librewolf.list
deb [arch=amd64 signed-by=/etc/apt/trusted.gpg.d/librewolf.gpg] http://deb.librewolf.net impish main
Download a signing key.
$ sudo wget --output-document /etc/apt/trusted.gpg.d/librewolf.gpg \ https://deb.librewolf.net/keyring.gpg
--2022-01-22 9:23:34-- https://deb.librewolf.net/keyring.gpg Resolving deb.librewolf.net (deb.librewolf.net)... 116.203.248.82 Connecting to deb.librewolf.net (deb.librewolf.net)|116.203.248.82|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 2307 (2.3K) [application/octet-stream] Saving to: '/etc/apt/trusted.gpg.d/librewolf.gpg' /etc/apt/trusted.gpg.d/librewolf.gpg 100%[==============>] 2.25K --.-KB/s in 0s 2022-01-22 9:23:35 (7 MB/s) - '/etc/apt/trusted.gpg.d/librewolf.gpg' saved [2307/2307]
Ensure that it downloaded correctly.
$ gpg --import-options show-only \ --import /etc/apt/trusted.gpg.d/librewolf.gpg
pub rsa4096 2021-10-05 [SC] [wygasa: 2024-10-04] 034F7776EF5E0C613D2F7934D29FBD5F93C0CFC3 uid Malte Jürgens <maltejur at dismail.de> sub rsa4096 2021-10-05 [E] [wygasa: 2024-10-04]
Update package index.
$ sudo apt update
Install LibreWolf browser.
$ sudo apt install librewolf
Start LibreWolf.

Nice!