Firefox Community Forum

Background: I need to run an enterprise web app on selected PCs and Macs, the browser will not be used for browsing, do not highlight security risks.

I must absolutely use Firefox 48 because it is the latest version to support showModalDialog()

I installed Firefox 48 on Windows and everything is ok, it works as it should.

On MacOS Sequoia, on the other hand, Firefox starts, the menus in the “Apple” bar at the top are usable, but the browser window is totally transparent, only the border and title bar are slightly visible.

I read on the support forum that it might be enough to disable hardware acceleration, but I can't do that because the options page doesn't even show!

I use a 2009 Mac Mini running OS 10.11.6 dedicated for streaming. I was prompted to update Firefox to ESR which I did, replacing the older version of Firefox. The new version will not open.

It was the only browser I had. Can I undo the installation? Or download 78.15.0 somehow to restore the functionality of this Mac?

Hi, with Debian 12 every time I open Firefox ESR (128.6.0esr) in background opens a terminal window (seems to be a kind of log actions) This terminal if i close it terminates the Firefox too. I could not find an explanation of this behavior in the internet. Thankful for Your advice to get rid of this problem.

Hey, I am using firefox-esr from debian repository (128.6.0esr). The problem is that some other language text shows as a rectangular box with numbers and letters inside it. Please help!!!

Hello,

I am currently using an old version of Firefox (56.0.2) for personal use because of the addons that are no longer supported. I understand the security risks involved, but I need this version for a specific project that is critical to me.

If it functions well now, will I encounter any new issues after March 14, 2025? I have disabled all browser updates.

Thank you.

I know firefox 78 is old but i accidently did the ESR release before backingup bookmarks.

ESR is nor working on MAC 10.10.5

I was trying to move forward - now I am stuck

Jim

Firefox is default browser. Have used McAfee Truekey for years with no issues. It has now disappeared from browser. Reloaded the app, and McAfee website tells me to activate it. How do I do this/ should I do this?

Hello after version 131 network.http.strict_response_status_line_parsing option is missing and i have problem with my site error "The status line of the HTTP response is invalid - NS_ERROR_PARSING_HTTP_STATUS_LINE" Can someone is teal me what is new option replace network.http.strict_response_status_line_parsing ? Now i not able to turn off network.http.strict_response_status_line_parsing and not have irping from my website

Hello fellow foxes,

I really need to use Firefox version 52ESR.MSI as I need to push it through Active Directory.

I have tried downloading the version from https://ftp.mozilla.org/pub/firefox/releases/52.0.1esr/ ,however there is no MSI version that I can see.

I also tried downloading from https://www.mozilla.org/en-US/firefox/all/desktop-esr/win64-msi/en-US/ but the last version is 115.

I also tried third party sites like oldversion.com but I couldn't find it.

Is there anyway I can get this version of firefox? It's really important to me.

Thanks in advance

I want to know whether I can update my current Firefox version with my very old desktop setup. I am using the Firefox browser version 78.15.0esr (64-bit) on my iMac 2007 running OS X El Capitan. This notice came up when opening Firefox: " Your version of Firefox will start to have problems on January 14. A root certificate will expire, causing some preferences and other features to stop working. On March 14, 2025, add-ons and more features will also break." Following the instructions to update, in About Firefox window, it checks for updates and then shows Firefox is up to date. I've interpreted this as there's no version available that I can update to. Is that correct?

My company relies on another company for our VM using Amazon Linux 2 and installs Firefox ESR from Amazon Linux 2 extras. We have 115.18.0esr and were getting notifications at the top of Firefox saying this would stop working on 14th March. We got 128.7.0esr but it core dumped on loading even in safe mode and when creating a new profile. So downgraded and then found another coworker faced same issue so go him to also downgrade. I then went to recreate my issue get logs and screenshots to provide to my supplier but 128.7.0esr has disappeared from the amazon linux yum repo and the notification about the need to upgrade before 14th March has also gone and gone from co worker machines. I think it was needed for plugin and cert issues but I am not sure. I realise I should reach out to the supplier for them to then contact Amazon and find out what the issues are from their yum repo and see if it is anything to do with their provided vm. But has anyone got any info on the reason to upgrade from 115.18.0esr so I can add to the issue? I know it's EOL but the message was specific and came from Firefox and links which took you to info about why it was needed but it seems weird the notification has disappeared.

I kept receiving notice for automatic update to esr version until yesterday 1-12-25, I believe it stated book marks would be automatically included. Now today I have to go in manually to get update but unknown of all by bookmarks will follow as well. My old version 109.1 64 bit. Thank you.

I'm on a Mac running OS 10.14.6. I have consistently updated, and currently have Firefox 115.20.0esr. Yesterday a tax website said my Firefox was out of date, and wanted me to update. From within Firefox I clicked to update, and it downloaded an installer. But when I installed this new update, it's the same version: 115.20.0esr.

Can you shed any light on this? Is there any reason to keep this "new" version of Firefox?

Thank you for your help!

I am trying to download Mozilla firefox esr can you help let me know [edited] @gmail.com or call [edited phone# from public community support forum] my name is Gary Small