Firefox Community Forum

I am aware that Windows 10 will continue seeing support for the foreseeable future, but what about older versions and builds of 10?

I ask because I'm currently on a machine that physically can't update beyond version 1909 build 18363.1198 due to an issue that occurred on my machine in November 2020. So I've been stuck at that version and build of 10 for basically the last five years. While I'm trying to see if I can update it to 22h2, the last known version of Windows 10 with the hopes of enrolling in the extended security updates, that may not be feasible due to how old the mahcine itself is. Will Firefox continue to support all versions of 10 for the foreseeable future and not just those on the ESU? If so, great. If not, what version will be the last that can support the version I'm on? I don't have a Windows 11 machine yet on a full time basis (I'm testing an 11 machine out, but I may not end up keeping it) and I prefer 10 to begin with, so I would like to know when I need to stop updating Firefox itself, so that I can be sure I'll be able to keep using the browser with my current OS.

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

My MacOS is 10.13.6 (cannot go higher on this machine). Since update to 15.119.0esr, embedded map graphics are no longer showing. The map graphic sub-window instead shows "Sorry, we have no imagery here" in several places across the map. I am getting the same for multiple websites, including the location maps in Zillow.com . Google Maps works fine, and I think the problem is isolated to maps embedded in pages. Did not have this issue last week, prior to updating to 15.119.0esr. This is SO BAD that if it's not fixable, I want to revert to 15.118...

Glenn Schaffer Email removed for privacy

Where can I download a fresh Firefox 115.33.0esr (64-bit) browser for Win-7 because the one I have installed is so corrupted and I can't seem to be able to fix it.

I'd like to keep my antique desktop iMac functional. Firefox appears to want to strand me. Any thoughts on updating my web browser via Firefox or other providers? My system is OS 10.11.6 (El Capitan)

My bank recently upgraded their requirements for on-line banking to Firefox 128 and higher. I have WIN 7 with 115 on it. How do I upgrade from 115 to 128? Thanks for your help.

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!

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!

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?

So today I allowed an upgrade of FireFox to version 115.24.0.esr (64bit).

Now both extensions fail... uBlock Origin AND Proton Pass These were last updated May 27th and May 19th.

uBlock Origin manages to "pop up" a blank sub window.

Proton Pass starts an infinite loop displaying, then erasing itself and re-displaying:

Welcome to Proton Pass An error occurred while resuming your session Retry (button) Sign Out

Is there a way to go back to a previous version of FireFox?

I have DLink webcams around my home and I can no longer access their web pages to control them because of certificate issues. I have no success with Microsoft Edge running in IE mode either. Using IE mode I am able to get into two of my D-Link Camera’s web pages but with the other two (one of which is my newest camera) I get this message:

The browser you are using may have difficulty receiving images and video. If you experience any issues viewing this page, we suggest using Internet Explorer.

When I go to the MyDlink website using Firefox Version 128.5.2 ESR I get this message:

Unsupported Browser or Operating System Detected! We recommend you use Firefox 12-51/52 ESR on Windows or MacOS to access the mydlink portal.

Is there a way for me to get the Firefox version they recommend?

I'm on an older, unsupported operating system (MacOS 10.14 Mojave) and am currently using Firefox 115.36.0esr which for the most part works fine. But there are increasingly websites that complain about having an outdated/unsupported browser and won't let me log in or whatever. For some sites I've solved the problem by using the Opera browser, but I've grown accustomed to Firefox, so......

There are a couple of options (that I know of) with browsers based on Firefox: Firefox Dynasty which has now become Firefox Momiji and Pale Moon.

I've given Momiji a quick try and function-wise it seems more or less like the regular Firefox, but does anyone know how safe it is to use? Both in regards to whoever is behind it and as a browser in general? I know nothing about Pale Moon. In addition to working with most current websites and be safe it should ideally be compatible with the current (115.36.0esr) version of the normal Firefox so that I can transfer all my open windows, bookmarks, tabs, passwords etc.