Extensions are small add-ons that add new functionality to Basilisk, from a simple toolbar button to a completely new feature. They allow you to customize the browser to fit your own needs and preferences, while letting us keep the core itself light and lean.

1 Key Web Search
Web Search Accelerator
Bootstrapped adblocking is yesterday!
Active Stop Button
Stop gif animation with button, context menu or Esc key
Active Tab More Visible
Makes active tab more visible, with a fixed color (#F4F4F4) compatible with most complete themes and lightweight themes.
Active Toolbars More Visible
Makes content of active toolbars more visible, by providing a background for toolbar icons and bookmarks.
Adblock Latitude
Acceptable ads are yesterday!
Addons Memory Usage - Intika MoD
Adds an about:addons-memory page that details add-on memory usage
Address Bar & Search Bar More Readable
Makes the URL and Search bars more readable, by increasing font size and/or disabling URL formatting.
A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.
Auto-Sort Bookmarks
Sort bookmarks by multiple criteria
Ayn Ayn
ע\ع is a multi-purpose text research tool with advanced support of Semitic languages. Select a text in your browser window and/or use "aynayn" context menu item to process.
Back to Top
Go to the top (or bottom, right, left) of a page.
Bamboo Feed Reader
Feed reader | RSS - ATOM - OPML
Block Content
Block Content Download and Manage Permissions (Image, Script, Style, ...)
Bookmarks Sidebar with Panels
Splits the bookmarks sidebar into 2 panels.
Attempts to remove modals (in webpage window pop ups) and it's blur's/veils for all webpages
Calendar with basic events support.
CanvasBlocker Legacy
Changes the JS-API for modifying <canvas> to prevent Canvas and other Fingerprinting.
Display the current SSL/TLS cipher and certificate chain
Classic Add-ons Archive [External]
Catalog of classic Firefox add-ons created before WebExtensions apocalypse
Classic Password Editor
Adds the ability to create and edit entries in the password manager.
Classic Reload-Stop-Go Button
CRSG-extension for default Firefox theme styles the Reload-Stop-Go-button on urlbar like it was on Firefox 4-8.
Classic Toolbar Buttons (Palemoon)
Classic toolbar button style for Firefox, Thunderbird and Seamonkey toolbars and other tweaks and settings.
Create multi-addon install package (Cleopack)
Color Identifier
Displays the rgb and hex color codes of pixels in the browser window. Optionally copies these codes to the clipboard. To open the Color Identifier "eyedropper" window, click on the statusbar toolbar button or the navigation bar…
Config Comments
Reveals comments (from source) for advanced application preferences in about:config; for Pale Moon only. Experimental alpha software. Please do not take this add-on as license to make uninformed changes to about:config.
Context Search X
Enhances the context menu with a list of search engines and specified engines placed outside the submenu. Includes an item to search for selected text on the current site. Mouse buttons and accesskeys are customizable. Fully confi…
Cookie Masters
Comprehensive Cookie Management
Cookie Permissions Button
View and change cookie permissions for websites from toolbar button.
Cookies Control Panel
Manage cookie permissions from a toolbar button.
Cookies Exterminator
Auto delete cookies, localStorage and IndexedDB objects as soon as they become unused
Adds icons to menus and buttons.
Directory Up
*Climb up directory (folder) structure and cut off fragment identifier or query string by mouse click and shortcut key. *Click toolbar button/Ctrl+Up: climb up/cut off querystring *Alt+Up: climb up…
Dismiss The Overlay
Click to close any overlay on any website
Dorando keyconfig
Rebind your keys.
Downloads Statusbar
Downloads Statusbar manages every aspect of your downloads (Launch, Show, Scan, Send To, Rename, Checksum, Pause, Resume, Cancel, Clean, Delete, and much more). Fork of "Download Status Bar" by xadiCanione.
Downloads Window
Separate downloads window
Downloads: Show in Window, Tab, or Sidebar
Allows the download manager to open in a tab, the sidebar, or separate window. Use the shortcut key (Ctrl+J) to toggle the downloads window, tab, or sidebar, open or close. Opening or closing the downloads window, tab, or sideba…
Enhanced SteamGifts & SteamTrades (ESGST)
A script that adds some cool features to SteamGifts and SteamTrades.
Exif Viewer
Extracts and displays the Exif (Exchangeable Image File), IPTC-NAA/IIM (International Press Telecommunications Council / Newspaper Association of America / Information Interchange Model), and IPTC Core (Adobe XMP, Extensible Metad…
Extended Statusbar
A Statusbar with speed, percentage, time and loaded size (similar to Opera's one)
Extension Conflict Troubleshooter
Systematically enable/disable addons to find extension conflicts
Extension Source Explorer
Explore source code of various browsers extensions using CRX Viewer engine
Fast Dial Visual Bookmarks & Quickdial Tool
Fast Dial Visual Bookmarks. Change the Quickdial/new-tab-page columns, rows, background image or color, and more.
Backup your browser data
FTP client for Mozilla Firefox.
Adds the ability to take a screenshot of the page, edit it and save, copy to clipboard, send to external editor or e-mail it.
SSH Client for Mozilla Firefox.
Forecast & Weather on the Button
Toolbar icon provides current temperature. Click icon for detail weather and forecast from Google.
FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.
FoxyProxy Basic
Premier proxy management for Firefox
FoxyProxy Standard
Premier proxy management for Firefox
Glass your Firefox ui (only possible on Windows 7 and Vista with enabled AeroGlass Windows theme settings)
Replaces built-in notifications with the OS native notifications. It works on Linux and Windows 10.
Google Translator for Pale Moon
Translate the selected text and the full page with Google Translate.
Hide scrollbars
Home Styler
Make your about:home page stylish!
HTTPS Always
Encrypt the Web! Automatically use HTTPS security on many sites.
I don't care about cookies
Get rid of annoying cookie warnings from almost all 'infected' websites
ImageHost Grabber [External]
Download entire galleries of hosted images with just a few clicks.
infoRSS Reloaded
Display NNTP, HTML, RSS and Atom headlines in the status bar
Integrated Authentication for SeaMonkey and Pale Moon
An extension that helps with enabling and managing NTLM (Windows pass-through) and other SPNEGO (integrated authentication) settings.
Shows whether the application is running with Administrator privileges.
Hide windows and use the notification icon to get them back!
Lull The Tabs
Unload inactive tabs to free up browser memory
A Magnet and Torrent Downloader for UXP. Runs everywhere. Created in pure JavaScript without binary software!
Master Password+
Various enhancements for built-in "Master Password" feature
Menu On Top
Moves the main menu bar to the Top and adds Style.
Ultracompact Mouse Gesture Extension.
microGesture Tab Edition
Ultracompact Mouse Gesture Extension.
Modify HTTP Response
Rewrite http response body using search & replace patterns
Save exactly what you see, in a single file. MAFF (based on ZIP) is compact and exceptional for video and audio. MHT (Internet Explorer's format) allows easy exchange with IE users. Store many tabs, find original, and more!
Brings a few (mostly tab related) features from older versions of Opera to Pale Moon and Basilisk.
NewScrollbars (aka NoiaScrollbars)
Improves scrollbar appearance using various customizations and tweaks.
NoiaButtons extension for default Firefox theme.
A quick and easy multi-tab note taking solution.
Old search
Return Old search method
Open With Edge, IE, Chrome, and More
View links, pages, and bookmarks in Edge, IE, Chrome, and other browsers. To open external browsers in incognito/private browsing mode (IE, Chrome, Opera, Vivaldi, and a few other browsers), CTRL-click the browser's menu or t…
Extends the "Save" dialog by a button to open the file directly.
Import/Export extension preferences
Advanced Import/Export extension preferences
Password Backup Tool
Export and import your saved passwords
Password Manager Menu
Allows user to clear HTTP Basic Authentification, clear master password data and open the password manager.
Paste Email (original)
Paste email addresses and more.
Paste Email Plus
Paste email addresses and more into any textbox.
The ultimate Vi-style browsing extension
Periodic Table of XUL Elements
A collection of XUL demos.
Popup Dictionaries With Audio
Open dictionary in multiple languages with one click of toolbar button or shortcut key Shift+D
Profile Switcher
Easily switch profiles
Proxy Privacy Ruler
Restrict Proxy by Private Windows, Tabs and Domain List
Quickly login and get Passwords into the clipboard. Never display them anymore!
Restart Browser
Adds a toolbar button, menus, and shortcut key (Ctrl+Alt+R) for restarting the browser.
Restart manager
Adds to Pale Moon the ability for easy restart on demand. Also, in versions 20+, manages all normal restart requests, allowing the user to choose what to do, according to offered options.
Sage Reader
A lightweight RSS and Atom feed reader.
ScrapBook X
Helps you save web pages and organize the collection.
Block JavaScript on listed sites.
Scroll To Top
Scroll to top and vice versa in a window.
Search Buttons Bar
A search engine toolbar with one-click search.
Self-Destructing Cookies for Pale Moon
Fix the web. Gets rid of a site's cookies and LocalStorage as soon as you close its tabs. Protects against trackers and zombie-cookies. Trustworthy services can be whitelisted.
Sidebar to the Right
Move Sidebar to Right
Sidebar Tools
Use drop-down menu to change from one open sidebar to another. Click the splitter bar (or use F4 key) to toggle sidebar open or close.
window.crypto.signText replacement
Smart Preview for Pale Moon forum
Quick preview of forum content using a popup frame
Social Fixer for Facebook [External]
Fixes annoyances, adds features and enhances existing functionality to make FB more fun and efficient.
Speed Start
Speed Dial & Start Page with flexible layout for fast access to sites via visual bookmarks
Adds a splash screen on startup while you wait.
Restyle the web with Stylem, a user styles manager.
Custom additions to Stylish extension.
Super Start Speed Dial
Fast speed dial access to web sites using visual bookmarks. (Right-click any page, tab, or link to add dials to Super Start. Drag and drop Super Start dials to other dials to create dial groups.)
Tab Mix Plus
Tab browsing with an added boost.
Tab Utilities Phoenix
Open Bookmarks/History/URL/Search in new tabs, and more utilities for tabbed browsing. Replaces the original Tab Utilities by ithinc and focuses on PaleMoon support. Merged in changes from YFdyh000.
The Good 'ol Sidebar
Sidebar control with award-winning user experience!
Theme Maker
Create custom personas/light themes for Pale Moon.
Theme Tweaker
Instantly changes the font family, font size, font color, font style and background color of main interface for Pale Moon and other Mozilla-like applications.
Thin Bookmarks
Ability to customize the bookmarks bar.
Thin Tabs
Ability to customize the bookmarks bar.
Toggle Bookmarks
Hide or show the bookmarks toolbar, using toolbar button. Automatically show the bookmarks toolbar for the new tab page and your home pages. And, hide the bookmarks toolbar for all other webpages.
Adds a toolbar button and keyboard shortcut to switch between the default page colors and colors defined by the user. Firefox and Palemoon shortcut: Control-Shift-C; SeaMonkey shortcut: Control-K
Translate This Page, Text, or Link
Translate an entire page, selected text, or link, using Google Translate. Right-click a page, link, or selected text for context menus. Or, to translate an entire page, click the toolbar button or use shortcut key "Ctrl+Alt+T".
Turbo Downloader
Download manager with multi-threading support
Window Menu
Restores the Window menu.
Zombie Keys
Bring dead keys to life: accented letters made easy!
Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.