Pale Moon is an Open Source, Goanna-based web browser forked from
pre-Australis Mozilla Firefox aiming to be fast, efficient and easy to
use.

This SlackBuild just repackages the 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.