Web browsers

Name Anti-privacy features Default search engine Code Additional features Chromium based Summary
Mozilla Firefox Telemetry and phoning home is enabled by default however it can be disabled via about:config. Firefox accounts which lets you sync all your Firefox data across all devices, this can be completely disabled via about:config. Google MPL-2.0 Tracker blocking No Its fine if you disable all the spyware via about:config but most people should just avoid Firefox.
Google Chrome Telemetry, phoning home and additional spyware features are enabled by default and it can't be disabled. Made by one of the biggest tech companies for the cattle for massive data collection. Google Proprietary - Yes AVOID AT ALL COST!!!
Microsoft Edge Telemetry, phoning home and additional spyware features are enabled by default and it can't be disabled. Microsoft's horrible Chromium based spyware. Bing Proprietary - Yes Avoid at all cost
Opera / Opera GX Sponsored multiple YouTubers and websites to shill their spyware. Telemetry, phoning home and additional spyware features are enabled by default and it can't be disabled. Owned by a Chinese consortium since 2016 (Golden Brick Capital Private Equity Fund I Limited Partnership). Had a shady past. Google Proprietary Free Opera VPN which is probably used to harvest user data Yes Chinese spyware, avoid
Brave Makes requests on startup. They had a "bug" in the past that leakead IPs of those who used the built in Tor window. They did URL injection in the past to earn money via referral programs. Brave Search MPL-2.0 Tracker and ad blocking, built in Tor window Yes Avoid it
Abrowser Makes a few requests on startup, because some spyware Firefox features are not disabled (e.g.: firefox sync) DuckDuckGo MPL-2.0 / GPL-3.0 Tracker blocking No This is like the rolling release version of GNU Icecat. Icecat does a way better job at removing Firefox spyware so you should just use Icecat
Tor Browser It sends requests to torproject.org and to Mozilla when you start it, however these requests can be disabled. DuckDuckGo BSD 3-clause Your identity is hidden thanks to the Tor network. You can change the browsing mode and the safest disables JavaScript, heavily blocks cookies, disables canvas and gives you additional privacy features No Recommended, just don't use DuckDuckGo
LibreWolf It makes a few requests on startup, however these can be disabled. DuckDuckGo MPL-2.0 Disables multiple privacy concerning features and has ad block (uBlock Origin) No Recommended, just don't use DuckDuckGo
Falkon It updates the adblock list in the background on first startup, but nothing else. DuckDuckGo GPL-3.0 Ad block Yes Recommended, just don't use DuckDuckGo
qutebrowser None DuckDuckGo GPL-3.0 Ad blocking (not advanced), uses Vim keybinds Yes Recommended, just don't use DuckDuckGo
GNU Icecat None DuckDuckGo MPL-2.0 / GPL-3.0 It has multiple privacy respecting addons (e.g.: LibreJS) and features. No Recommended, just don't use DuckDuckGo and make sure that you use an up-to-date build. GNU Guix has recent binaries.
Ungoogled Chromium None None, you have to set one yourself BSD 3-clause - Yes Recommended