Pale Moon is a fork of pre-Australis Mozilla Firefox aiming to be fast, efficient and easy to use. This SlackBuild just installs a binary package provided by the project. It doesn't attempt to build the browser from source. You can force Pale Moon to use system-provided hunspell instead of its own dictionary by passing the USE_SYSTEM_SPELLCHECK=yes variable to the script. If you need to change the GUI language, please visit https://www.palemoon.org/langpacks.shtml and follow the installation instructions.