Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
...I mean, it's hard to give a definitive answer to that question. Obviously, Firefox Dynasty contains source code changes from mainline Firefox. Whereas mainline Firefox has a large team of developers reviewing code changes, Firefox Dynasty does not. It's possible there is a security vulnerability lurking in Firefox Dynasty which does not exist upstream.

But, using Firefox Dynasty should be more secure than using an outdated version of Firefox, if those are your two options. If you need to be as secure as possible, you should use an up-to-date operating system.

My philosophy is that most people are not targets and do not need to be as secure as possible, and that something as small as using a password manager puts you ahead of 99% of computer users. Other people disagree with me.
Thanks WFH, your take on this was not unexpected. After Mozilla drops support for the current 115esr in High Sierra, most likely in March, my choices then are to use FF Dynasty in High Sierra, but with caution. Or, again with some caution - by needing to rely on the trustworthiness of the OCLP developers - but perhaps with somewhat less reserve, in Firefox - as it's the real Firefox - or Brave, in my Ventura OCLP.

Btw wondering what's your opinion, in general, not necessarily what I reported above, of BrowserAudit?
 
Last edited:
There are basically just two files you really need to edit, Info.plist and App.icns. The latter is merely your app icon; all of your settings are right inside Info.plist. Change those values, and everything else will automagically update the next time you run the app.
@Wowfunhappy Thank you for you great work. I can’t explain how helping your projects are.
However, it is not clear to me to which values those lines should be edited in those files.
And it’s also not clear enough whether I should edit Info.plist and App.icns in WebAppTemplate.app or Firefox.exe.
 
And it’s also not clear enough whether I should edit Info.plist and App.icns in WebAppTemplate.app or Firefox.exe
You want to edit the data in WebAppTemplate.app. The templates are self-contained app bundles, although they use Firefox Dynasty behind the scenes they are not actually connected to the main Firefox application. You could use a template on a Mac without Firefox installed.

---

I realized I forgot to mark the template app as retina-capable, which is why the Apple Maps app I made looked pixelated to @iPodNano3. I'm going to fix that soon (possibly tomorrow), alongside some other fixes.
 
I've been hoping to use Web App Templates as a substitute for WebCatalog on my iMac running 10.15 (using your instructions), but the apps I made crashed immediately. Is 10.15 not supported by Dynasty?
 
You want to edit the data in WebAppTemplate.app
Thank you. I noticed three files have been highlighted when I opened package contents of WebAppTemplate.app.
I figured how to make a web app (just have to fill-out!) but it’s still unclear how do I make several apps. There’s only one section to edit in info.plist. And I don’t get how to ‘attach’ it to Firefox Legacy. So far I only managed to make one web app with WebAppTemplates.app without using Firefox.
I’m definitely missing something.
I don’t get how do I make a web app using Firefox Legacy.
I apologize for being bit behind and I would appreciate some light shed on this.
 
I spent Sunday working on the Web App Templates again, little polishing tweaks to how in-app URLs are handled. Also, retina displays are now supported. (Writing that sentence in 2025 feels strange.) Latest release on Github as usual.

it’s still unclear how do I make several apps.
You make a copy of the app and change info.plist in that copy.

And I don’t get how to ‘attach’ it to Firefox Legacy.
It doesn't "attach", it is its own app.

I've been hoping to use Web App Templates as a substitute for WebCatalog on my iMac running 10.15 (using your instructions), but the apps I made crashed immediately. Is 10.15 not supported by Dynasty?
I'm sorry, I don't know! Easiest way to find out would be to test standard Firefox Dynasty I suppose.

Depending on how much effort you want to put into this, you may be interested in the "Hacking" section of the readme. In theory, I don't see any reason you couldn't use a build of normal Firefox, provided that:
  1. You use a version that supports unsigned extensions. (For example, an "unbranded" or "developer" build.)
  2. You make sure that FirefoxModifier is injected into the Firefox binary.
  3. You placate Gatekeeper and whatever other code signature related annoyances exist on modern macOS.
 
Last edited:
  • Like
Reactions: rampancy
Screen_Shot_2025-02-09_at_5.50.36_PM.png

If anyone is interested, the Zen Browser (Based on Firefox) works very well after copying in Firefox Dynasty's binaries.
 
  • Like
Reactions: Wowfunhappy
Yes, that website is not loading for me in Firefox Dynasty. However, it's also not loading for me in Safari on my fully up to date iPhone, so it looks like a problem with the website!

I think to remember, that 133 or 134 was loading. Because I wanted to check as well.
I have not installed 133 anymore. Nevertheless, in my case 135 loads sides that all other browser won't and I am more than satisfied.
Example discourse.pi-hole.net
But I think that various sites are blocking browsers that they dont like, independent of the ability to load. Or they send a limited simple website.
 
Hi @Wowfunhappy

Any news on 10.7 support I can't find much besides a "intentions" note in i3roly's github?
I've tried it and if fails to start.

On another side nore on 10.7 the downloader fails to run.
Am I doing something wrong?

Best regards,
voidRunner
 
On another side nore on 10.7 the downloader fails to run.
Am I doing something wrong?
...nope, turns out my downloader is completely broken on 10.7/8. This is why I need to actually test 10.7/8 instead of testing on 10.9 and assuming "it's just a simple Python script, of course it will work." 🤦‍♂️ I will fix it.
 
Last edited:
^ I updated the Downloader to work on 10.7 and 10.8.

But, yes, Firefox Dynasty itself still appears to not start on 10.7. I know Gaghan is working on it because he'll often post videos of the app running in a 10.7 Virtual Machine. However, I cannot make it launch either. For the moment, you still need at least Mountain Lion!
 
Hi @Wowfunhappy

Thanks for fixing the downloader so quikly :)
I tried it and everything looks ok and downloads fine now.

Regarding running Firefox I tried it again from the command line and it complains
about a missing OSX framework CoreText and then wont open

I did a quick search on duckduck and this framework is only available in 10.8+ so maybe
they have a different build that does not use this :-|

Best regards,
voidRunner
 
all other browser won't and I am more than satisfied.
Example discourse.pi-hole.net
I know it’s a bit off-topic, but it works fine in BrassMonkey (and any other UXP based browser like SeaLion, Pale Moon, Basilisk, etc) with the ModHTTPResponse extension and this code:

Code:
[["/discourse|^discuss|^community\\.|^forum\\.|resource\\.dopus\\.com/",["/browser-detect-/",["/.*/g",""]],["/vendor-/",["/(t\\.discourse\\.hoisted|t\\[e\\]|r)(\\?\\?|\\|\\|)=(\\{\\}|\\[\\])/g","$1$2($1=$3)","n??=[]","n||(n=[])"]],["/discourse-/",["e.draft||=t.draft","e.draft||(e.draft=t.draft)","/(t\\.__registry__\\._typeInjections\\.service|[ne]|[fm]\\[e\\])(\\?\\?|\\|\\|)=(\\[\\]|\\{\\})/g","$1$2($1=$3)","(s||=","!s&&(s=","this._details??=","this._details=this._details??","this._similarTopicsMessage||=","this._similarTopicsMessage=this._similarTopicsMessage||","this._applicationElement??=","this._applicationElement=this._applicationElement??"]]]]


BM-pi-hole-net.png
 
Hi all,

So I finally got it to run in 10.7 but I had to download it directly from i3roly github.
So this is what I did:

1. download the last available release on i3roly github
2. just for piece of mind delete the Firefox folder inside ~/Library/Application Support
3. create a symlink inside /System/Library/Frameworks

sudo ln -s /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreText.framework CoreText.framework

With this I'm using Dinaty without any problems as I'm posting this from it right now.

1740307398084.png


Best regards,
voidRunner
 
136 running nicely on MBA 4,1 under High Sierra!
Because of FD, I'll now be running my machines on their last supported versions of MacOS, so no compromises on performance!
 
What is the grey square? It appears in 2 out of 3 starts of FF. You can see it in the screenshot in the left upper corner.
This Dynasty FF 136.0 Build 3 installed via the Downloader and running under El Capitan.

I first thought it is in the FF bar itself (and blocking important elements of the navigation bar), see screenshot nr. 1. But than I realised it is not, it sits in the corner of the screend and covers whatever happens to be under it, see screenshot nr. 2.

It does not appear at every start of FF, but often.

L.E. I overinstalled with 136.02 directly from source. The square dissapeared. What still remained is the whiteing out of confirmation buttons, only the YES, not the Cancel. (Forgot to mention this initially.)

What I want to aks the OP: What did you modify so that Facebook and Instagram videos play even when not in the active tab?


Bildschirmfoto 2025-03-13 um 13.16.27.png
Bildschirmfoto 2025-03-13 um 13.36.58.png
 
Last edited:
Is it possible to install localised versions? I am acostumed to the German version.
 
What is Firefox 136.0.2???? Just DL'd the 136.0.1 which opens as 136.0.2. Not finding the 136.0.2 anywhere, just the 136.0.1 - Version 136.0.1, first offered to Release channel users on March 11, 2025


When I go to What'snew I get a 404


Screen Shot 2025-03-15 at 11.15.23 AM.pngScreen Shot 2025-03-15 at 11.18.36 AM.png
 
Last edited:
No idea what it is, but I can cofirm that happened to me too. Installed 136.0.1 but it declares himself 136.0.2. If I remember correctly after installing 136.0.1 it wanted to actualise to the newest version.
 
What is Firefox 136.0.2???? Just DL'd the 136.0.1 which opens as 136.0.2. Not finding the 136.0.2 anywhere, just the 136.0.1 - Version 136.0.1, first offered to Release channel users on March 11, 2025


When I go to What'snew I get a 404
Have you tried What's new again? Someone reported that 404 as part of an issue in GitHub, but later got an actual Mozilla message.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.