Support Pale Moon

[KrasnayaPloshchad]

Your DownThemAll! and Browser Version and Language and Operating System

DownThemAll! 4.0.8 （used only in Firefox)
Pale Moon 28.7.0
Windows 10 v1903

Expected Behavior

Create a version for Pale Moon, and release at Pale Moon add-ons website.

Actual Behavior

Firefox add-ons website doesn’t allowed to install DTA on Pale Moon.

Steps To Reproduce

Open this page at Pale Moon

Additional info such as log extracts

Please enable Diagnostic Logging in the Privacy tab of the DownThemAll! preferences and either copy/paste essential part of the log or attach the entire log. Please note that the log may include sentitive information which you have to remove prior to posting it!

[Abhinav1217]

I would also like to add information about Basilisk Browser which is created and maintained by same pale-moon team. If I remember correctly, primary difference is that pale moon hard-forked the firefox codebase from the last point where legacy addons were supported, and maintained that codebase. while basilisk was an attempt to keep on adding code from newer firefox, with newer ui, and adding support for legacy addons on that.

[minch-dev]

https://github.com/minch-dev/DownTheMoon
Here is a fork/continuation of xul DTA 3.1.1pre that I maintain, it supports Pale Moon, Waterfox Classic and Basilisk.