Extensions for Pale Moon, Firefox & SeaMonkey made by JustOff:

Active Stop Button

Stop gif animation with button, context menu or Esc key

Add Bookmark Helper

Add a menuitem 'Add Bookmark Here...' to Bookmarks Menu

Advanced Night Mode No Restart

Customizable Night Mode for Pale Moon

Age Unlimiter for YouTube No Restart

Watch age restricted YouTube videos in Pale Moon without signing in

Classic Add-ons Archive No Restart

Catalog of classic Firefox add-ons created before WebExtensions apocalypse

Close last tab with middle-click No Restart

Close last tab with middle mouse click

Cookies Exterminator No Restart

Auto delete cookies, localStorage and IndexedDB objects as soon as they become unused

Dismiss The Overlay No Restart

Click to close any overlay on any website

Emoji Assistant No Restart

Emoji cheatsheet extension for Pale Moon

Extension Source Explorer No Restart

Explore source code of various browsers extensions using CRX Viewer engine

GitHub Web Components Polyfill No Restart

Ensure that all GitHub scripts are loaded correctly

Greedy Cache No Restart

Always load scripts, images and styles from browser's cache

HTML5 Media Tuner No Restart

Selectively disable HTML5 Video/Audio and/or Media Source Extensions, control 60fps and WebM Video

Location-4-Evar

Show status and progress indicators in location bar

Lull The Tabs No Restart

Unload inactive tabs to free up browser memory

Modify HTTP Response No Restart

Rewrite HTTP response body using search & replace patterns.

Moonscribe No Restart

Unofficial Windscribe Proxy Client for Pale Moon

Moon Tester Tool No Restart

Allows to install any extension, regardless of target application and versions specified in its manifest

Password Backup Tool No Restart

Export and import your saved passwords

Photobucket Unlocker No Restart

Unlock access to embedded Photobucket images

Proxy Privacy Ruler No Restart

Restrict Proxy by Private Windows, Tabs and Domain List

Responsive Bookmarks Toolbar No Restart

Auto expand folders in Bookmarks Toolbar on mouse hover

Save All Images

Save images from pages and tabs

Scriptlet Doctor No Restart

Allow inline scripts regardless of site policy

Send Link to Device No Restart

Send a tab or link to another device using Pale Moon Sync

Smart Preview for Pale Moon forum No Restart

Quick preview of forum content using a popup frame

Speed Start No Restart

Speed Dial & Start Page with flexible layout for fast access to sites via visual bookmarks

View Source In Tab

Open embedded source viewer within tab

WebInstall Ninja No Restart

Save a copy of XPI packages when installing from the Web

YouTube Lazy Load No Restart

Prevent YouTube from auto-load and auto-play videos