Firefox Community Forum

Receiving the following error message:

Error: Platform version '129.0' is not compatible with minVersion >= 128.0.3 maxVersion <= 128.0.3

How do I resolve this?

I recently bought a new computer and transferred all the data from my old computer to this new one. My old computer was running ESR, which was transferred to my new computer.

Without downloading a fresh install of Firefox and having to lose everything, is there a way to simply move over to the release channel of firefox? I tried syncing it up with my account but I still lost my history. Fortunately, I still have the ESR version of Firefox on my computer.

I tried to import but Firefox ESR wasn't an option.

I've been having this annoying popup about XULRunner encountering an error. From what I've read, XULRunner is a legacy integration with Firefox. Sure enough, I see Mozilla Firefox installed. But un-installing it doesn't help. Soon, it is re-installed, and the error comes back. I have a feeling that some application is using XULRunner and Firefox as a component, but I don't know what it could be. Is there any way to find out, and stop that application from installing Firefox and XULRunner? Or at least getting its problem fixed?

I am constantly getting a message on my Win computer saying an update for Firefox is available? Happens all day, many times a day. But when I press update, nothing happens.

I've noticed that after a few months Firefox ESR will go from being one specific version to two different version tracks. Eventually the older track is removed and the newer one is continued until it then splits. Can someone tell me why this happens and is there an easy way to swap over to the current track? I've included an attachment of what i'm talking about.

How do I stop these recurring update notices? Every 3 seconds. I'll update when I am ready as this current one does not affect me at all. For a while I fell for it, stopped what I was doing and did the ridiculous update, it still continues! I can move on to a different non-Mozilla browser if I have too. Return the option to not update and/or do it manually. FF127.0.2

I'm having trouble posting here with that error message, and problems uploading images, so forgive me if you have not seen the latest updated post.

error

You are still on the beta update channel as you can see in the "Help -> About Firefox" screenshots.

You can possibly check about:support for the path of the Firefox binary and profile folder..

Above you mention portable, are you using a portable Firefox version? To update, it's just a matter of extracting the executable and replacing the contents of the portable folder.

What differentiates the "portable"method, that I've been using as my method for years without an incident, up until recent recent Firefox releases? The only thing I do when there's an update is replace the contents of the install folder, the same folder that the profile manager is pointing to, with the contents of the extracted executable,

I just realized the existence of this folder in about:support "Update Folder: C:\ProgramData\Mozilla-1de4eec8-1241-4177-a864-e594e8d1fb38\updates\C47CD37E750B0BD0. I tried to delete it. It recreated itself, changed my settins to "Update Autoimatically" and wiped out my entire session.

The contents of it's update-config.json file are the following. Would changing these values to "false" do any good? Or perhaps altering the contents of updates.xml in the same folder

"{"__DEFAULTS__":{"app.update.auto":true,"app.update.background.enabled":true},"app.update.auto":false}"

I do have a "Profile" folder at C:\Users\mr\AppData\Local\Mozilla\Firefox\Profiles. The two entries are from 2019. One is empty, ans these are the contents of the other

profile contents

My Firefox install apparently did a background update that did not complete, I get an error 'XULRunner / Error: Platform version '129.0' is not compatible...'

I did not (do not) have a profile I had logged into for that installation, but did have many passwords saved that I'd like to still be able to use if at all possible.

I have installed another instance of Firefox that is working (on platform 129.0), and am using Windows 11. I also turned off automatic updates in hopes of preventing this in the future.

The previous profile still exists in AppData/Roaming, but I don't know how/if I can connect it to the new installation I now have.

Is it possible to either fix the incomplete update or connect my old profile to this new instance so I don't have to reset all my passwords?

Thanks!

I can't get firefox to play amazon music web page or netflix because it claims to be installing an app which it never completes. I've tried to purge cache for the site in question, to no avail. What is the solution?

Well I am on the near end of Support for Windows 7 SP1 Pro here for Firefox 107.1, and very similar with me, instead of Stop Errors, I get complete Computer Freeze ups, and don't have Hardware Acceleration enabled on it, but I did some Evidence that the Freeze ups maybe due to too many Firefox processes running and apparently causing some issues of PID handling which is causing which I did a test and found out CSRSS.exe maybe having difficulty with the Multiple Firefox Processes in some versions of Windows 7, 8.1 & 10, last known problem was discovery of the Win32K. sys Lockdown Exploit which to some note is also Security Exploit.

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LINUX. see subject, please. i started on this laptop w/ mint. 5 or 6 years ago. then downloaded peppermint 1 and has been working great, but the browser does not update automatically like is said. Then, my Linux guy up and passed away. I know no one in town that uses it. I'M ON LINUX. any help appreciated. have gotten some replies with folk trying to help, but it just wants to download/install whole program. my bank wants me to upgrade to at least 115. can't access accts. Chase are useless. They don't know what Linux is. Perhaps someone here can point me in right direction? Regards. God bless.