BROWSERS
Beware: apparently many (most?) websites ignore 'do not track' requests and track you anyway!

FIREFOX
My personal choice on Linux Mint. Many add-ons for fine tuning (see next link) but these will probably slow it down.

FIREFOX ADD-ONS
All sorts of features to add to Firefox.

CHROME (Windows, Mac, Linux)
Alternative to Firefox (from Google).

CHROMIUM  (Windows, Mac, Linux)
Developed by Google and released as an open source browser (presumably to pick the brains of open source developers). Google then
added embelishments (such as mp3 decoding) and released it as their propriety browser CHROME.
 Windows and OS-X Versions                               Ubuntu & Mint Versions

SAFARI
From Apple.

OPERA (Windows, Mac, Linux)
Opera originated browser tabs, and includes an email client. Excellent.