Step one - go to Pale Moon addons site, install Moon Tester Tool. It has two major functions, one of which is to change possible applicable links at AMO to "install in Pale Moon". Another function is to do a slight rewrite in extensions that won't install natively.

Pale Moon is an Open Source, Goanna-based web browser available for Microsoft Windows and Linux (with other operating systems in development), focusing on efficiency and customization. Jan 12, 2015 · Pale Moon wins at stability compared to FF. I can’t get rid of FF yet, I have it for some specific addons a I can’t make work in Pale Moon. However, Pale Moon is my main browser, because it’s native 64 bits version takes advantage of my computer resources, at the same time, it’s stable as my 32-bits version. Netscape Plugin Application Programming Interface (NPAPI) is an application programming interface (API) that allows browser plugins to be developed. It was first developed for Netscape browsers, starting in 1995 with Netscape Navigator 2.0, but was subsequently adopted by other browsers. Jan 15, 2018 · The Pale Moon team plans to remove support for Mozilla AMO (Add-ons Mozilla Org) from the web browser on May 8th, 2018.. Pale Moon is largely based on Firefox code, but compatibility took a hit recently when Mozilla switched the add-on system of Firefox to support WebExtensions exclusively while Pale Moon stayed with the what Mozilla calls legacy add-on system. Pale Moon is a fork of Firefox with substantial divergence. The main differences are the user interface, add-on support, and running in single-process mode. Pale Moon retains the highly customizable user interface of the Firefox version 4–28 era. It also continues to support some types of add-ons that are no longer supported by Firefox.

Because Pale Moon itself already provides process isolation for plugins as a security measure, adding a second layer by Flash itself may make the plugin unstable on some systems. It was put together mainly for people who have limited knowledge of accessing the Windows file system and manually editing a configuration file in a system folder.

A future version of Pale Moon will be based on this code, but right now the developer considers Basilisk an unstable development platform. This fits Pale Moon’s kind of weird history. The first major version of Pale Moon was based on Firefox 24 ESR, due to a disagreement about where Firefox was headed.

Pale Moon portable has been specifically designed to take with you on removable media with high wear and slow access, and its default settings reflect this. Using it on a stationary computer has a number of drawbacks and is not recommended. Download from the European mirror: 32-bit or 64-bit ; Download from the American mirror: 32-bit or 64-bit

Download the language pack .xpi from this page (below). Choose to immediately "install" in the Pale Moon browser (the default when left-clicking), skipping the need to save it first. Install Pale Moon Locale Switcher from this site. Click the new globe icon with colored bubbles in your toolbar, and select the language you prefer from the drop-down.