Pale Moon Portable v27.9.4 Updated

billon on 18 Jul 2018
  • 49MB (uncompressed)
  • Released on 17 Jul 2018
  • Suggested by infimum

Pale Moon Portable is a modified version of Firefox focused on efficiency and ease of use. Unlike Firefox, there is no support for accessibility features or parental controls.

System Requirements: Vista / Win7 / Win8 / Win10
Writes settings to: Application folder
Stealth: ? No. Leaves the following empty folders behind:
  • %appdata%\Mozilla
  • %appdata%\Mozilla\Extensions
  • %appdata%\Moonchild Productions
  • %appdata%\Moonchild Productions\Pale Moon
Unicode support: Yes
License: MPL + redistribution restrictions
How to extract: Download the Self-extracting package and extract to a folder of your choice. Launch Palemoon-Portable.exe.
Similar/alternative apps: Firefox Portable, SeaMonkey Portable, K-Meleon
What's new? See:

75 comments on Pale Moon Portable  The Portable Freeware Collection Latest Entries Feed

Zandy 2010-10-01 02:40

I use this gem, ghostzilla and a couple of 0-trace usb-operas to keep my internettering fast, clean and happy. For this prg the Ff extensions will delete anything temp (I use click and clean which then auto-fires ccleaner).

grannyGeek 2010-10-12 03:39

Seems nice, but Firefox and all its forks REFUSE to work with mht or mhtl files. I save lots of web pages to read off-line, I use mht format so as not to have lots of html folders (and MSIE saves to mht by default).
Unless some wizard knows how to force Firefox/Palemoon to use mht, I guess I will have to stand with Opera and Internet Explorer. Too bad, it seems like a very nice piece of software.

portaFreeUser 2010-10-26 17:52

@grannyGreek, there are FireFox free plugins that can open and save to MHT so as long as this program can use extensions, you will be ok.

webfork 2010-10-27 01:31
freakazoid 2010-11-19 22:42

Hmm... Pale Moon seems to backup the passwords and bookmarks. Check out the /backups/ folder in your PaleMoon folder, my backups folder is now 120MB! Check out the .ini file to remove this functionality and reclaim your USB drive space!

jabba the hutt 2010-12-12 17:03

it'd be interesting to see what speed improvements it'd have with firefox 4.0

hugh_h 2011-03-04 17:30

So let me get this straight. Regular Firefox was written to support what? The 8088 through Pentium 3? Aren't those all in landfills or running Linux by now?


webfork 2011-03-04 18:34

hugh_h: compiling software for early hardware has advantages beyond simply working on more computers. Faster testing, deployment, download, and more.


Terrine 2011-03-04 20:17

Pale Moon 4.0 development:


Mark Del 2011-03-15 11:06

It definitely runs faster than Firefox 3.5+ but it seems less stable. It crashed on me numerous times. Firefox seems slow and sluggish in comparison but I think I prefer that to instability. Nice idea, though.


Daniel 2011-03-17 12:56

Saw it first on this site a while ago, and decided to give ita try. Never looked back, is wonderful, very stable, lightning fast and very compatible; so far I haven't had any problems, crashes, etc, compared to plain, ol' firefox. Besides, it is very memory friendly, It has became my regular browser, even makes me to pass on Firefox 4. I highly recommend it.


Inka 2011-04-14 00:17

Here is another portable version with multiprofil GUI.


bajaatan 2011-06-29 08:53

new version 5.0 of the Pale Moon browser


zak_711 2011-08-27 17:41

What does that zip ( not portable! ) do on that site?
Any question?


SYSTEM 2011-09-11 05:30

@zak_711: The non-portable ZIP distribution is targeted for people who don't want to install Pale Moon (unpack and run) but who don't want to use Pale Moon portably (shame on them! ;)


Midas 2011-09-12 14:34

A definite favorite and my default browser. Highly recommended in both portable and non-portable versions, although you can still find good lighter/faster alternatives.


zak_711 2011-09-22 14:55

I think it's a kind of joke, as that zip works perfectly with WPPL and with PApps launcher. @SYSTEM I didnt undrstand the difference, about jokes, about Avira set up creator and the link i have to splitted about the toolbar.


SYSTEM 2011-10-02 19:32

@zak_711: Could you please rephrase?

I'll answer to the "I didnt undrstand the difference" part anyway:

The people who use the non-portable ZIP distribution want to run Pale Moon without installation. It's faster to just extract the ZIP file and run the browser.

However, they explicitly WANT Pale Moon to save its settings to %APPDATA%. (Otherwise they would just use Pale Moon Portable.)


Emka 2012-01-12 20:35

Doesn't it still leave a Mozilla\Extensions folder in AppData?


freakazoid 2012-01-14 01:15

@emka - Is this on a fresh install? Or is this with some Firefox plugins installed?


Emka 2012-01-14 06:54

I've never had any Mozilla or derived product on this machine before and I have never seen this folder in my AppData before. It was on Win7x64 with the x64 version of Pale Moon. I opened the add-ins tab to check whether it could find the flash plugin I have installed for use with Opera. (It did find it.) Could that be the reason?


freakazoid 2012-01-14 21:14

@emka - You'll have a better setup than I do to test since I have Firefox installed on my com. Feel free to edit the "Stealth" entry.


freakazoid 2012-04-30 22:03

v12 of Pale Moon comes with an update to the portable launcher. Acording to the dev, it is recommended to make a fresh install (with a copy over of your profile files if desired) and not use an in-place upgrade. More info is available on the download page.


MnX 2012-08-29 22:15

v15.0 - Just in case anyone else has this problem: (I'm running this on Win 8) After d/l, clicked on app to launch, but it would not progress. The PM site says first launch of their portable will be slow, about 30 seconds, but 5 minutes later it still wasn't launching. No way to kill it, not even from Task Manager, I rebooted. Tried it again...same results. Then, before the next attempt, I turned off my internet connection. BOOM! Extracted and works just fine. So, there's something hinky with their self-extractor and internet least on this version.


freakazoid 2012-08-29 22:56

@mnx - Interesting indeed! You might want to let the Pale Moon developers know at


MnX 2012-08-30 03:15

@freakazoid ~ Yep, already done. They have a "Contact" page and I sent the same info. (Better than jumping through hoops to join a forum I'll only use once.)


Midas 2012-08-30 10:29

I'm also experiencing some odd browsing glitches with the latest (no-install) version...


freakazoid 2012-08-30 19:52

Hi Midas, try reading this thread and see if it helps -


Midas 2012-08-31 17:03

Thanks for the info, freakzoid. BTW, that URL was one example -- it wouldn't open in Palemoon before I opened it with Waterfox...


freakazoid 2012-08-31 17:21

@midas - Weird... it's working fine for me!


rodger123 2012-10-09 08:28

I have tried many versions of this browser and gave up,yes it is fast but very buggy,especially with extensions and themes,both install fine then next time you run it it says certain themes and extensions are not compatable with this version!Yikes!


freakazoid 2012-10-09 18:56

The only extension that isn't compatible is Status-4-Evar.

The rest work fine for me; I should note that I have plugin compatibility disabled.


rodger123 2012-11-04 01:06

Ditto I gave up as it is fast but buggy as a wisconsin summer day-kept saying extentsions were not compatable with this version!


mmx64 2012-12-02 09:57

I've been using this as my main browser for a year now. Never had any problems. I like it because besides the speed increase, the author has a cautious approach to new features and designs in Firefox.


shodan816 2013-01-18 17:15

You can call this version 'Portable' all you want, but it is NOT PORTABLE! Most people define portable as not writing to the client's system, or at least not leaving a trace once the application is closed. This version fails on both levels. I fix computers for a living and my clients do not want remnants of my apps left behind when I finish with their PC's. Other portable browsers, specifically SlimBrowser are truly portable.


freakazoid 2013-01-18 19:26

@shodan816 - You're right; I checked Pale Moon's forum and the following thread verifies what you're saying:

I've updated the listing to reflect this.

Other than those locations, are there any other places where Pale Moon Portable leaks?


freakazoid 2013-01-18 19:28

FYI, x64 version is 57.5 MB.


sps 2013-03-02 14:28

@shodam816 - I wonder why slimbrowser is not listed here at TPFC


freakazoid 2013-03-02 16:42

@sps - It's up to people in TPFC to add new programs.

You have the ability to add it yourself; there should be an "Add Entry" button in the top right-hand corner of the page.

FYI, Slimboat was mentioned in the forums:

It's by the same author as Slimbrowser, but uses the Webkit engine instead of Trident (IE engine).


I am Baas 2013-03-02 17:29

SlimBrowser writes to the registry at: HKEY_CURRENT_USER\Software\FlashPeak\SlimBrowser\BarState-SCBar-59432


sps 2013-03-03 15:58

@freakaziod,thank you for your reply
@I am Baas, I never noticed this, will take a look at it, thanks


nunz 2013-06-03 01:36

shodan816: Add a batch file to kick off the program then delete the empty folders the progam leaves behind. Alternatively start the prog off inside a batch shell and change the %appdata% folder for that batch shell.


__philippe 2013-11-27 15:43

PaleMoon Portable v 24.2.0 released


__philippe 2013-12-05 15:19

PaleMoon Portable v 24.2.1 released

Pale Moon: Release notes 24.2.1 (2013-12-04)
A minor bugfix update:
- Fix for some status bar localizations not working and giving an error.
- Implementation of an optimized QuickFind routine.
- Implementation of per-zone user data handling.
- Security fix in the JPEG library.
- Security fix in web workers.


__philippe 2013-12-12 11:25

Palemoon v 24.2.2 released (2013-12-11)
Mainly a security update


webfork 2013-12-22 19:07

If you dislike the Pale Moon ctrl+tab interface (like me):


__philippe 2014-01-29 10:22

PaleMoon: v 24.3.0 (2014-01-28) released

A fairly significant update with feature updates, bugfixes, and security fixes.
Installation recommended.



freakazoid 2014-01-29 22:24

Man, v24.3's change to add the page title messed up my custom layout. Had to manually remove the page title with Stylish using this -


__philippe 2014-02-01 09:25

PaleMoon v24.3.1 (2014-01-31) released
A minor bugfix release to address some issues with new code in 24.3.

- Fine-tuned the title-bar title text position to work a little better on Windows 8 systems.
- Fixed a problem with the classic download manager window not opening and/or downloads not
starting when using the classic download manager.
- Security fix: Bug 945334 - Fix runnable pointer holding.
- Merged Linux-specific theme code into the source tree for the pm4linux project.


__philippe 2014-02-12 07:09

Pale Moon v24.3.2 (2014-02-11) released
Important update to add support for TLS v1.2, fix bugs, update security and add new features.
More info in the release notes :



carbonize 2014-02-15 09:05

@freakazoid - I think Moonchild needs to remember they are supposed to be just a fork not a redesign. Wonder what he intends to do when Australis goes live.


freakazoid 2014-02-15 20:28

@carbonize - My belief is Moonchild is going to keep his UI exactly the same as it is currently. I use Firefox most of the time now, but I will be getting rid of Australis with an addon when it hits.


carbonize 2014-02-15 22:06

Australis isn't to bad but is pretty much a chrome rip off. In version 29 with Australis they have now added an option to show the titlebar or not. Only issue I, and many others, have with Australis is the space in the GUI and no option for small icons any more.


__philippe 2014-03-11 12:48

Pale Moon: v24.4.0 (2014-03-10) released

Release notes:


__philippe 2014-03-20 13:18

Palemoon v24.4.1 (2014-03-19) released. "A small security and bugfix release."

Release notes:

- Bugfix: the new status bar code in 24.4.0 had a bug, preventing the downloads panel/window from opening when clicking on the download status indicator. There may have been a few other, similar small usability bugs in the same code that have now been fixed.

-Feature update: Selecting "Warn me when closing multiple tabs" in the Options window will now apply both to closing a window and closing other tabs in the tab bar.

- Bug #940714 - Add an RAII class to make synchronous raster image decoding safer.
- Bug #896268 - Use a stateless approach to synchronous image decoding. security fix
- Bug #982909 - Consistently use inner window when calling OpenJS. security fix
- Bug #982957 - Fix crash if certain sweeps run out of memory. security fix
- Bug #982906 - Remove option for security bypass in URI building. security fix
- Bug #983344 - JavaScript: Simplify typed arrays and fix GC loops. security fix
- Bug #982974 - Be paranoid about neutering ArrayBuffer objects. security fix


__philippe 2014-04-26 16:56

Pale Moon: version 24.5.0 (2014-04-25) released

"This is a security and bugfix release, to address outstanding known issues and streamline browser identity."

Full changelog:



__philippe 2014-06-07 10:11

Pale Moon: version 24.6.0 (2014-06-06) released

"This is a major update including a rendering engine overhaul and a number of very important fixes."

For details about the changes, see the detailed changelog on PM forum:



Checker 2014-06-07 15:29

@ __philippe: Thanks ... and updated ;)


__philippe 2014-06-09 15:16

@Checker: Beat me on v24.6.1 (2014-06-08)...;-)


__philippe 2014-08-07 10:40

Pale Moon v24.7.1 (Released 2014-08-06)
This is a bugfix release for some outstanding issues in 24.7.0



Checker 2014-08-07 17:34

@ __philippe: Thanks ... and updated ;)


__philippe 2014-10-12 18:53

Please note the most recent Palemoon 25.0.0 will NOT run under WinXP any longer.

Check the gory details about the reasons for dropping WinXP support, and some proposed alternatives, here:

For the die-hard, endangered species dinosaurs still feeding on WinXP, let's stick for a while with previous Palemoon 24.7.0, until the fateful upgrade to Win7 becomes finally ineluctable...;-)



JohnTHaller 2014-10-12 20:54

__philippe: The publisher himself has this to say about it: "Not recommended: stay on Pale Moon 24.7.2. With the release of Pale Moon 25.0, simply 'not upgrading the browser' is not recommended because the previous major version will not receive updates or further support. We simply do not have the manpower or resources to continue updating and maintaining multiple different versions of the same product. If you stay on Pale Moon 24.7.2, you will not receive any security and stability updates that the current version receives, and you will put yourself at (even greater) risk."


__philippe 2014-10-12 21:50


The publisher is quite right, of course.

The end paragraph above was kind of a tongue-in-cheek commentary about my own procrastination to switch over to safer Win7. Perhaps I should have added a couple more smileys ?...;-) ;-) ;-)



Mixture 2014-10-12 23:23

I updated to Pale Moon 25.0.0 and found out AdBlock Plus no longer worked. I switched over to the latest version of Firefox several days ago, added and updated all my security and privacy plugins and surfed just fine until today. Three-quarters of my bookmarks would not work. I tried MS Internet Explorer and encountered most of the same problems as Pale Moon and Firefox. In frustration, I switched to SRWare Iron and manually added my necessary bookmarks. Thus far, everything works. I have dumped Pale moon and Firefox. (Now, if I can only get Ghostery to install for Chrome/Iron.)


Midas 2014-10-13 11:09

@__philippe: sad news indeed -- although, for performance reasons, I had already dropped Pale Moon in my WinXP rig. No bad deed goes unpunished. 3:)

@Mixture: might I suggest the simpler BluHell blocker as an alternative, should you ever return to Mozilla land? (


olliebean 2014-10-13 11:11

The Atom build of Pale Moon Portable (available on the download page) still works with XP. Also there is a v25 compatible version of AdBlock Plus at However there are too many other non-working extensions for me to upgrade to v25 atm (a list is being maintained at Apart from ABP it seems the Pale Moon developer is relying on add-on developers to make them compatible with Pale Moon, so it's probable a lot of these will remain incompatible.


ancientimages 2014-10-14 18:11

> I updated to Pale Moon 25.0.0 and found out AdBlock Plus no longer worked.

Sadly, Pale Moon is going to have a lot of incompatibilities from here on. The fact that it doesn't work with the most popular add-on for Firefox is pretty telling, and the Pale Moon developer has placed responsibility on the heads of add-on developers, rather than trying to work around the problem.

Anyone looking for a more "old fashioned" approach to Firefox might want to look into Seamonkey.

Seamonkey is sort of a bundled Firefox and Thunderbird. It contains many of the options that have been stripped from Firefox over the past year, denying power users their old level of customization (fine-tuning JavaScript permissions, etc.).

And like Pale Moon, Seamonkey doesn't suffer from the Chrome-like "Australis" design!

Check out the portable version here on Portable Freeware:


ancientimages 2014-10-14 18:25

Just a quick addition to my previous comment: Seamonkey still has incompatibilities with some Firefox add-ons, but fewer than Pale Moon. Most of the time, you have the option to "install anyway."

But if you're looking for full compatibility, you're probably best off sticking with Firefox and the and "Classic Theme Restorer" add-on to restore Firefox's original design, and the "SettingSanity" add-on to restore the removed options (JavaScript, etc.)


webfork 2014-11-08 03:26

ancientimages: thanks, added SeaMonkey to the similar/alternative section of the entry


@thehop 2015-04-18 18:34

@Version 25.3.1 again works fine for me! The Add-Ons-Section looks disabled - but not really ...


DarkShadow 2016-02-16 18:51

v26.1.0 released !


SYSTEM 2016-09-21 12:38

As of Firefox 49, Firefox requires SSE2 just like Pale Moon. Thus, there are no longer differences in system requirements between Firefox and Pale Moon. I dropped all the text about Pale Moon's system requirements.


Hawk 2017-01-17 18:41

Sadly the latest versions no longer support WinXP.


MIKLO 2017-03-06 16:08

Very useful program, I have been using Sea Monkey for awhile due to the speed of changing sites. I curious to see how Pale Moon Portable compares. I will let you know, more will be reveled.



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