Firefox Community Forum

I'm an IT support professional and in our environment we are still running few servers (for multiple reasons) with OS version Microsoft Windows Server 2012 R2 Standard and Microsoft Windows Server 2012 R2 Datacenter and they have currently Mozilla Firefox ESR (x64 en-US) 115.15.0 installed. I couldn't find any clear answer, hence I've created this ticket - is Mozilla Firefox ESR 115.16.0 supported on this OS ? - usually you are not referring to Microsoft Windows Server in you release notes info - f.ex. https://www.mozilla.org/en-US/firefox/115.16.1/system-requirements/ so I need clear answer. Also I cannot download Mozilla Firefox 115.16.1 from https://www.mozilla.org/en-US/firefox/115.16.1/releasenotes/ - if I click download it always downloads Mozilla Firefox 128 instead. So please let me know if there is any Mozilla supported version for Microsoft Windows Server 2012. Best Regards, Milosz Wrzalek

I have loved FF desktop browser since I started using it per my boss in 2003. But I am so tired of the fact that EVERY SINGLE TIME you put out an update it breaks my access to the bank. EVERY SINGLE TIME. I waste HOURS reading articles, calling the bank IT dept, chatting with people who are on 3 calls at once, only to hear them tell me to "just use chrome." I clear the cookies, clear the cache, reboot, follow all the prompts in the settings and THEN the damned bank server doesn't recognize the device so it forces yet ANOTHER password change. It happened again TODAY and it makes me so sad but I cannot do it anymore. I am STILL now (going on 4 hours) trying to access the billpay page @ Xantanderbank. (ahem, secure codename) I am forced now, by this craziness, to use the imbecilic duckduckgo which is A) and offensive name and b) you KNOW it nowhere near the product you have built but I CANNOT DO THIS ANYMORE. Thank you for the time it takes to read this diatribe. I appreciate it.

I have a user at my job that installed the latest Firefox update (13324.11.21) through our MDM. After installing this update she cannot launch Firefox. When attempting to launch she receives a request for a username and password to install a Helper Tool. She is an admin on her machine and enters her credentials. The message closes and nothing happens. When attempting to launch again the same thing happens. This is not happening with our other 100 Macs who have the same Firefox version and others who have the same OS.

Is anyone able to tell me why this is happening or how to fix? Any assistance is very much appreciated.

The below troubleshooting steps have been done:

Uninstalled and reinstalled Firefox

Updated the OS to 15.0.1

Disabled the Master Password on Firefox through a Mac Profile

Checked if there was a Firefox file under /Library/PrivlegedHelperTools

Granted Full Disk Access to Firefox under System Settings

So, I don't have an issue, I just want to scream because my firefox crashed and when I started it back up it asked me about booting it in safe mode or something, but I didn't want that and the other option was 'refresh firefox'

Nowhere AT ALL does it warn you that it will WIPE your current installation and RESET everything. I had no ideas and had not saved up the content of my OneTab extension in a while, FUCKING THANK YOU FOR THAT.

That's it. Fuck you.

I have updated Firefox from 115.16.1 to Firefox ESR because I use a Mac running OS 10.13.6. Is there a way, hopefully an easy way, to import all of the bookmarks and extensions I was previously using in 115.16.1 to ESR. Hope so. Thanks!

Gary

I have got a message: "Error: Platform version '130.0.1' is not compatible with minVersion >=130 maxVersion< =130.0" I can´t get any connection. What am I going to do and how can you help me?

Regards Mats Å.

Since Mozilla Firefox web browser v127.0 (released June 11 2024) the manual installation of the Adobe Acrobat Pro extension (the adobe_acrobat-1.0-windows.xpi file) do not work anymore!  :disappointed_face:

So, when you go in any higher version of Mozilla Firefox web browser then v126.0.1 (released May 28, 2024) to this web browser Menu Bar -> Tools -> Add-ons and Themes -> Extensions -> Install Add-on From File..., and then try to manually import-install the Adobe Acrobat Pro extension (the adobe_acrobat-1.0-windows.xpi file) into the Mozilla Firefox web browser, and from this HDD location:

C:\Program Files (x86)\Adobe\Acrobat DC\Acrobat\Browser\WCFirefoxExtn\WebExtn\signed_extn\adobe_acrobat-1.0-windows.xpi

The Mozilla Firefox web browser will say during this .xpi file installation: "This add on could not be installed because it appears to be corrupt"!  :disappointed_face:

However, in any Mozilla Firefox web browser version prior v127.0 (released June 11 2024), this manual import-installation of the adobe_acrobat-1.0-windows.xpi file will be most successfully installed in a Mozilla Firefox web browser without any problem!

I also create the most detailed and step-by-step post on the Mozillazine.org Forum and the Adobe Forum about all of this problem:

https://forums.mozillazine.org/viewtopic.php?p=14985444#p14985444

https://community.adobe.com/t5/acroba.../14893786#M480889

https://acrobat.uservoice.com/forums/.../48914657-mozilla-firefox-since-v127-0-cannot-install-anymor

So, please help and advice further. Thank you in advance and best regards!

I have a custom pitch black theme ( pls add it without addons ) which now only flashes for a second when i open the browser and returns to the normal greyish dark mode. When i go to Firefox Color addon page and load it again in saved themes it stays pitchblack even if i open another browser window until i close all the browser windows .

Currently on 131.0.3. Started having this issue around the time 131 dropped.

I press Ctrl-shift-O and bookmarks manager won't open. Bookmarks manager opens normally if I use the menu to open it. Keybind won't work in troubleshooting mode so I know it's not an addon, and the hotkey works fine on other computers with Sync enabled so I know it doesn't have to do with my synchronized settings. Also won't open with a fresh profile so I am very hesitant to reset all my settings.

I use this keybind multiple times per browsing session so it has had a major impact on my usage. Not sure what to do. Please help!

I'm going to try a graphics driver update in the hope that helps. This is on Windows btw.

Hi,

I seem to be having a really odd issue where each time I restart Firefox, recent addons I've installed will not function or appear in the Add-On drop down menu (despite being meant to appear in such), despite being enabled and still being shown as such when I check settings. They only become visible and functional when I disable and re-enable them.

I've just discovered the same thing seems to happen in reverse too. I recently disabled ClearURLs due to a bug it was causing in Google Drive, yet it appeared in my Add-On drop down menu after restarting. Checking settings showed it to still be 'disabled'.

Things I've tried:

• Restarting both Firefox and PC.
• Uninstalling and reinstalling the effected Add-ons
• Deleting my extension*, compatability.ini and prefs.js files - erasing all my add-on settings yet still not helping. This is the main thing I've suggested on forums like this with similar questions, but has not helped.

It seems to only be effecting the most recent set of add-ons I installed over the last week, as if Firefox keeps trying to work with the Add-on settings I had at a previous date. I've seemingly had some cases where the extensions disable or are uninstalled entirely but I'm not sure this is related, as I think it only happened once.

I suspect it's not to do with the new extensions themselves, given it's effecting all the most recent ones, but I'll list the ones I've seen it effecting here regardless:

ClearURLS (not recently installed, but as mentioned showing similar reverse effects) Undo Close Tab YouTube NonStop Privacy Badger History AutoDelete Don't Accept Image/Webp Decentraleyes Xkit Rewritten Disconnect AI Grammar Checker & Paraphraser - LanguageTool &udm=14

As you can see I recently installed quite a few anti-tracker type extensions which probably overlap in function, mainly just to test them out, so it could be connected to them I guess... but seems unlikely.

Thanks, Matt

Please indulge this silly question. What possible benefit is there for Mozilla continuing to list this page with the very first, oldest Firefox release at the the top, requiring the user, every time they visit, to scroll to the middle of the page to search out the current latest version instead of having the chronological order from latest to oldest instead?

I recently read the article about the root certificate expiration and the updates related to it (https://support.mozilla.org/en-US/kb/root-certificate-expiration ). I wanted to understand whether my add-ons will be affected because of this. Types of add-ons which i have 1) Simple searchOverride functionality 2) Simple functionality that communicates with remote APIs to display some data.

I am told that when FireFox closes it is supposed to delete a file called parent.lock in FireFox's Profile Folder. The parent.lock file does not delete when I close FireFox and consequentially it will not allow me to open a new instance of FireFox. If what I say is in fact true, what can I do to fix it? If what I say isn't the case, what can I do to make FireFox open a new instance of FireFox once I close it.

I sure hope I have explained this so it can be understood. When I close FF and then try to open it again, I get a dialog box saying FF is already open and has to close first. Not sure if those are the exact words but I was told that the parent.lock was to be deleted and that isn't happening. What can I do? Thanks.

After recent update bookmarks disappeared. When I restore them and then close firefox developer edition the bookmarks toolbar is gone again. It seems like a bug in that recent update. Please advise.

Hello team, When using Firefox to access an application that calls for Java applets, I receive a message saying "frmserlet-3.jnlp. Application not found." (screenshot attached). This did not happen before October 2024.Please help me with a solution. Thank you!

Brief summary: I have a user profile which reliably does not restore tabs after upgrading to Firefox ESR 128.3.1. A nearly-clean profile created in the same version as the problematic one comes from does restore tabs successfully after upgrade. How can I find out what Firefox is doing that leads it to decide not to restore the tabs from this profile, so that I can then figure out how to get it to not decide to do that?

Longer version:

I am working to prepare a deployment for my organization to upgrade from its currently-deployed Firefox release (ESR 107.2.0) to a much more recent one (ESR 128.3.1, which I understand to be the current latest ESR).

I make much heavier use of and reliance on Firefox than do most in my organization. As part of that, I have hundreds of open tabs in multiple windows, saved by the session-restore feature to be reopened on subsequent launches of the browser. I also have a variety of add-ons installed. (I also have some userChrome-related UI customization, but I have reproduced this issue without that, so I do not think it is relevant.)

Because of that heavy use and reliance, part of my process for preparing to deploy a new Firefox release across the organization is to copy my Firefox profile to a test computer, verify that it comes up correctly after the upgrade, and determine whether any manual adjustments (e.g. to new settings, or of the userChrome-related UI customization) is necessary. This also helps position me to assist any other users who may likewise make heavier use of Firefox than most do.

This is typically a fairly straightforward process, if a time-consuming and sometimes clunky one. In this case, however, something went wrong.

I shut down my primary Firefox instance (on Windows 10), copied the profile directory out, copied it into place on another computer (running Windows 11), launched Firefox 107.2.0 there (to confirm that the profile came up correctly, which it did), shut it down again, upgraded Firefox on that computer to 128.3.1, and launched again.

Rather than the profile coming up correctly, the browser opened with none of my hundreds of tabs. There was only one window, and the only tab in that window was displaying my configured default page. The History menu showed the pages I had recently navigated to prior to copying the profile, but the "Restore Previous Session", "Recently Closed Tabs", and "Recently Closed Windows" entries were all grayed out. about:sessionrestore did not show any session content to be restored; its list of windows, tabs, etc., was entirely empty. Other configuration aspects, such as extensions and about:config settings and so forth, were all retained without apparent issues that I have noticed.

Investigating led me to reports such as https://support.mozilla.org/en-US/questions/1449541 and https://bugzilla.mozilla.org/show_bug.cgi?id=1901899. The behavior described seems similar to what I am seeing, although the primary-password aspects do not appear in my case; I do not have such a password set, and did not see any prompt which would be related to one. (We have a policy in place to disable setting such a password, and it seemed possible that this might inadvertently trigger the same code path as having the user click to cancel on such a post-upgrade password prompt; however, I have tested the upgrade scenario with all of our Firefox-related enterprise policies removed, and the behavior was identical.)

Those reports, among others, suggest that such cases of lost tabs can be recovered from by looking under [profiledir]\sessionstore-backups\, identifying a .jsonlz4 file which contains the session data from the session, and copying that file to recovery.jsonlz4 and/or [profiledir]\sessionstore.jsonlz4.

I have experimented with this extensively, and gotten nowhere. The pre-upgrade copy of the profile contains a sessionstore.jsonlz4 file which, when I examine it via the tools from https://github.com/jusw85/mozlz4, appears to contain the correct session state; during launch after upgrade, this file disappears (i.e., gets deleted). The post-upgrade copy of the profile contains sessionstore-backups\previous.jsonlz4 and sessionstore-backups\upgrade.jsonlz4-[datetimestampstring] files which appear to be identical to the previous sessionstore.jsonlz4, and a sessionstore-backups\recovery.jsonlz4 file which is (reported as being) 1KB in size and is presumably empty.

If I exit Firefox, delete that "empty" recovery.jsonlz4 file and copy either previous.jsonlz4 or the update.jsonlz4-* file into place under the recovery.jsonlz4 name, then launch Firefox again, the behavior is observed again. The tabs and windows are still not restored; a little while (more than a few seconds, less than a minute) after the Firefox UI becomes available and responsive, the copied-in recovery.jsonlz4 file disappears, and a new one with the "empty" state is created in its place. (I conclude that it's not just having its contents "updated" to the "empty" state, because if I have the file highlighted in Windows Explorer before the Firefox launch, and after launch return to that window and keep pressing F5 to refresh, at first nothing visible changes, but then on a later F5 press Explorer goes from having the correct-size file selected to having no file selected and having an "empty"-state file present.)

If I instead - or also - copy the file into place as [profiledir]\sessionstore.jsonlz4, I see the same result. The newly-copied in file disappears after launch, and the tabs are not restored, nor available for restoration.

I have reproduced this behavior with various cut-down versions of the profile, including one which narrows it down to only one window and fewer than a hundred tabs, and which strips out the [profiledir]\chrome\ directory which contained the UI customizations.

I have created a test "clean" profile with Firefox ESR 102.7.0 (on the same computer where I'm doing the testing work), in which I just open a couple of tabs, set the "restore tabs on startup" preference, and exit. With that profile, the tabs come up after upgrade without issues. That demonstrates that this is not a universal problem, but is somehow being triggered by something about the profile I'm working with.

I have just about exhausted all avenues for debugging this with the resources I currently have. I have no idea how to get Firefox to tell me what it is doing in those early launch stages leading up to the point where the .jsonlz4 files get deleted. I'm not even sure it's *possible* to get Firefox to do that without using a debug build or doing custom builds which log status/etc. messages out to file at every step. Without that information, I have no leads on what to try that might bypass the problem.

The only idea I have left for getting any further is to try to bisect the profile/session down to a point where the issue *stops* happening, in the hopes of at least creating a minimal reproducing case - and because of the need to downgrade Firefox in order to be able to modify the profile/session, then upgrade it in order to test whether the issue still manifests, each step of the bisect is sufficiently lengthy and manual that I am hesitant to try to go that route without asking for help first.

I've considered filing a bug report on Bugzilla, but am not certain that that is the best venue for an appeal like this one, at least not as a first/next step - especially since I don't have a steps-to-reproduce, at least not without attaching a copy of the profile I'm using (which hardly seems like what that is asking for). I've already looked at the open bug reports in the session-restore component there, and not found any which seem to be covering the same behavior I'm seeing.

Any suggestions or advice which I might not have already considered and tried?

Hi,

We have a few vulnerabilities identified on windows server 2012 R2 servers that has Firefox version 115.15 installed and showing as Up-to date but resolution to the vulnerabilities suggesting to upgrade to version 128ESR. As support for 115 ESR version is going to end by 1st OCT 2024. Please let us know can we expect 128ESR version for windows server 2012R2? If not what is the next action plan.