K-Meleon is a free web browser that is based on the Gecko engine, the same one used by Mozilla Firefox.
The user interface of K-Meleon is pretty basic and looks less cluttered than other browsers. Options can be accessed by the gear icon which provides a tree-like list of different options that can be configured. You can also use this dialog box to enable and disable installed extensions and plugins.
Version 75.1 is a freeware program which does not have restrictions and it's free so it doesn't cost anything.
Virus and Malware Tests: The program has been tested with several antivirus applications and has tested clean of viruses, malware or trojans.