Firefox Community Forum

Firefox today advised me to upgrade as my current version will cease to function in the near future. I am currently running Win 7 x64 and Firefox 102.10.0 esr . Attempting to update results in a request if running Win 7,8 or 8.1 to also download and run additional 115.18.0esr . Attempting to run either 115.18.0esr OR Firefox 128.5.2esr results in a screen stating firstly "Windows 10" and secondly "Unable to install this version requires Win 7 x64 or newer". Win 7 x64 IS the version I'm running.

In Firefox browser , truncation of string is not working, when typing into the input box at first time truncation is not working, but when focusing out and typing once again it start working , seems its rendering problem which is not working at first time.

I am using following code <style> input.b { white-space: nowrap; width: 50px; overflow: hidden; text-overflow: ellipsis; border: 1px solid #000000; </style>

text-overflow: clip (default):

Above code will give the different result in firefox and the the chrome browser.

in chrome it will work at first time , means once user will start the typing into the input box , it will start showing the ellipses once text overflow will happen. but in Firefox it will not work like this, at first time when user will start the typing it will not show ellipses although text exceeds the boundary of input box , but when user focus out from the input box and start once again start typing into the input box ellipses will be shown. this behavior is creating confusion.

Kindly provide the solution for the same I am using 128.5.2 esr firfox version

Firefox kicks me out! My Mac works like a charme without any hardware problems. But now my favorite browser (FF) quits support. I'm amazed that a project like Mozilla does not care about sustainability. Any update in the software world must take care concerning downward compatibility - otherwise you exclude former users/customers. So why is ESR for Macos 10.9 to 10.11 not supported anymore? There are millions of Core2Duo-machines, that Mozilla sends to the trash. I'm extremely disappointed!

Like probably a Lot of you I don't support the unethical So-called "Forced-obsolescence" and am not planning to "upgrade" Microsoft every 18 months or so for the next 90 years on each on Every single family Computer and give in to their Scare tactics for financial, environmental and Ethical reasons.

I am currently running Firefox "Extended Support," or ESR, I think it's called. Was wondering, If I ever **DO** decide to upgrade our bloatware Spyware operating system(s), basically if they break enough Apps like Apple Likes to do to force an upgrade, how difficult or easy would it be to Migrate from ESR to the latest regular version of Mozilla/Firefox...with all my Settings, etc. still in place?

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

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?

Hi! I need a biiig help here. I have a mac OS X Yosemite version 10.10.5 and I would like to keep using this computer. I installed the FireFox 128.5.2esr.dmg. I saved it to my applications but I click on the icon and nothing happens... My FireFox is not ok now... I open it, but doesn't appear the icons or so (top sites or highlights). Thank you!

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?

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?

Bank Accounts: I can no longer access my Bank accnts online. My Bank says they no longer support my current version (ESR) & I must upgrade in order to access accnts online. Don't know what to do.

I have just got a new laptop and installed everything in relation to Firefox onto it. I have used the Nordpass extension for a couple of years and on the old laptop this is version 5.23.13 updated 16/10/24. On visiting the add-on and extension site today there is only a legacy version 4.33 updated 2y ago which clearly no longer works. Where has it gone. Clearly I am going to ask the same question of Nord, but I hope you can help.

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!

Dear Sir,

Firefox is not working with Rabby Wallet and Metamask extensions.

It does no pop-up the window to see the transaction and sign it. Firefox 134.0.1 (64-bit). Windows 10 Home.

On Metamask at least I can click on the pinned extension and see the window. However it´s not the expected behavior, because it should open the pop-up automatically. With Rabby wallet it is impossible to proceed, even clicking on the extension icon.

Please fix it.

Hello, I am experiencing unexpected behaviour with local storage in Firefox Portable ESR 102.1.0 on Windows 11. In particular, the data is not deleted as expected after closing the application, even after clearing the cache in my code, the data persists when I open the application the next time. This behaviour is observed under windows10 but is common under windows11.

I suspect that this issue may be related to:

• Interactions between Firefox Portable's cache management and Windows 11's system-level caching
• Specific behavior of the ESR 102.1.0 version on Windows 11

I would appreciate it if you could investigate this issue and provide any insights or solutions.

Hello Mozilla, I have a Lenovo G700 laptop with the WINDOWS 7 Pro operating system My browser is Firefox 115.19.0 (see file Firefox.jpg) During the security check in online banking I am told that the browser is out of date (see firefox2.jpg) But I can only update the version and it says "Firefox is up to date" What's wrong with that?

Best regards Heimo Ganzoort

Hi, During some tests I found that FF 115.19.0esr can still execute arbitrary JS similarly to CVE-2024-4367. I’ve checked the versions and > 115.11esr should be patched. Any payload with ‘/JS’ taken from https://github.com/luigigubello/PayloadsAllThePDFs/tree/main will do. Since this is probably important – FontMatrix is *not* working (no JS), original PoC (https://codeanlabs.com/wp-content/uploads/2024/05/poc_generalized_CVE-2024-4367.pdf) is also *not* working. I also wasn’t able to call an external script and so far haven’t found any path to exploit it beyond an alertbox. However, it still bothers me a lot and I’d like to know whether it’s the correct, expected behavior with FF+pdf.js, is it a vulnerability, or maybe my browser was somehow corrupted or is using some other mechanism that’s not within your control (my settings? about:config?).

Steps to re-create: 1. Open file in notepad 2. Add ‘/OpenAction 99 0 R’ after ‘lang’ in ‘1 0 obj section’ 3. After ‘endobj’ add ‘99 0 obj <</Type /Action /S /JavaScript /JS (app.alert\(1\);)>>’ 4. Result – alertbox popping twice