Known Incompatible Add-ons

Why aren’t all Firefox add-ons compatible with Pale Moon?

While we have strived for compatibility with Firefox add-ons, Pale Moon and Firefox are separate products. There are many possible reasons why an add-on is or has become incompatible with Pale Moon:

  • The change in the Pale Moon globally unique identifier (GUID)
    In Pale Moon 25, the GUID was changed to reflect the continuing divergence between the browser and its sibling. Most of the time a modification to chrome.manifest or bootstrap.js to add/change the hard-coded GUID is a simple solution to issues with add-ons. The Pale Moon add-ons team will do this for some of the most used add-ons where a developer has chosen not to support Pale Moon, thus creating a pseudo-static version of the add-on as a Pale Moon-specific one.
  • Australis
    In Firefox 29, Mozilla adopted a nearly completely rewritten user interface and theme as well as some technologies that Pale Moon has chosen not to implement. Add-ons targeting these features without fall-backs to the more time-tested and more commonly used features in all Mozilla-based programs will not be supported.
  • Jetpack/SDK
    In Pale Moon 27, we've been forced to drop support for the Add-On SDK (AKA Jetpack) as a supported framework for extensions. This means that a number of Firefox extensions that build on this abstraction framework will no longer work in Pale Moon. If this is the case, then the Add-On Manager inside the browser will inform you of it with an explanatory text.

I found an add-on that has issues, where can I report it?

We have set up a thread on the Pale Moon forums where you can report it. This will allow us to at the very least identify it and add it to this page. As well as, determine the cause and a course of action so that we can resolve the incompatibility.

List of add-ons with known compatibility issues

Last updated: 2016-09-15


  • 1Password
  • Now
  • AutoPager
  • Avira Browser Safety
  • BugMeNot
  • Click to Play per-element
  • cliget
  • Complete YouTube Saver
  • Customize Titlebar
  • Disconnect Search
  • Download Flash and Video
  • Download Manager Tweak
  • Download Status Bar
  • Download Status
  • Enhanced Steam
  • Fastest Search - Browse/Shop Faster!
  • FB Phishing Protector
  • Feedly Notifier
  • Flash Killer
  • fx-statistics
  • HttpFox
  • IDM CC (Internet Download Manager)
  • iMacros for Firefox
  • Informational Tab
  • infoRSS
  • KProxy Extension for Firefox
  • Omnibar
  • Random Bookmark
  • Simple Currency Converter
  • Snap Links Plus
  • SoundCloud Player
  • Total Validator
  • Watch with MPV
  • Web Developer
  • YouTube Video and Audio Downloader
  • player Resize
  • PasswordMaker
  • Pinterest Pin-it Button
  • Pushbullet
  • QuickPasswords


  • gTranslate
    Use S3.Google Translator
  • Hide Caption Titlebar Plus
    Use version 2.8.7rc
  • HTitle
    Use Hide Caption Titlebar Plus version 2.8.7rc
  • iMacros for Firefox
    Use version 8.8.7
  • LiveClick
    Use version
  • Lucifox
    Use version
  • Multiple Tab Handler
    Use version 0.7.2014050101.1
  • OmniSidebar
    Use version
  • Open Bookmarks in New Tab
    Use version 0.1.2012122901.1
  • Open With
    Use version
  • PrefBar
    Use version
  • Privacy Badger
    Use version 1.0.1
  • Pure URL
    Use Clean Links
  • QuickJava
    Use version
  • Random Agent Spoofer
    Use version
  • RedirectCleaner
    Use Clean Links
  • Redirector
    Use version 2.9.3
  • RefControl
    Use Hide Referrer Control
  • ReloadEvery
    Use version 28.0.2
  • Re-Pagination
    For Google search results pages: use Google Auto Next Page version 1.4.1
  • RoboForm Toolbar
    After installing the RoboForm desktop application, manually install 'roboform.xpi' from 'C:\Program Files (x86)\Siber Systems\AI RoboForm\Firefox' (64-bit Windows)
  • Scientific Calculator
    Use version
  • Self-Destructing Cookies
    Use version 0.4.9


  • Bamboo Feed Reader
  • Context Search X
  • CookieKeeper
  • DOM Inspector
  • DownThemAll!
  • EPUBReader
  • Fire IE
  • Forecastfox (fix version)
  • FoxyProxy (All SKUs)
  • I don't care about cookies
  • NewsFox
  • Print pages to PDF
  • ScreenGrab (fix version)
  • Secret Agent
  • Stylish
  • Tab Groups Helper
  • Tab Mix Plus
  • Who stole my pictures?
  • YesScript


  • Adblock Edge
    (Not needed because of
    Adblock Latitude)
  • Add-on Update Checker
    (We have this functionality built-in)
  • Baixou Agora
    (Was never compatible with Pale Moon)
  • Bazzacuda Image Saver Plus
  • Blender
  • Classic Theme Restorer
    (There is no Australis to change)
  • Compact Menu 2
    (Problematic add-on, use
    Tiny Menu or All Menus Button instead)
  • DVD Video Soft YouTube Downloader
  • EmojiT
    (Was never compatible with Pale Moon)
  • Fasterfox Lite
    (This is considered harmful to Pale Moon)
  • Find In Numbers
    (We have this functionality built-in)
  • Flash Video Downloader
  • Lightbeam for Firefox
    (Mozilla Service Experiments are not supported in Pale Moon)
  • Mouse Gestures Redox
    (Doesn't exist anymore)
  • Nightly Tester Tools
    (We are not Firefox and we do not offer "Nightlies")
  • Nimbus Screen Capture
  • Personas Rotator
    (Depends on Personas Plus, which doesn't work well with Pale Moon)
  • Quick Translator
    (Problematic add-on, use S3.Google Translator instead)
  • S3 Download Manager
  • Search by Image for Google
  • Shorten URL (
    (Doesn't exist anymore)
  • Simple Timer
    (Doesn't exist anymore)
  • Strict Pop-up Blocker
    (Australis-only add-on, never supported Pale Moon)
  • Text2Link
    (Duplicates built-in functionality: highlight any link -> right-click -> open link)
  • UnPlug
  • YouTube Unblocker


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