Firefox Community Forum

WED 21FEB24 The urgent issue is that in the last few weeks, many web pages do not load content, just a grey or white screen. Some will load the header. I am the Executor for someone's estate, and I am having this trouble with some financial websites that I must access to do the job.

Its been many years since I upgraded anything. It might be that Macintosh Firefox 78.15.0 esr (64 bit) and Thunderbird 60.9.1 are the newest revs that work with OSX 10.11.6 El Capitan. I have a 2011 MacBookPro.

I don't like the changes in the user interface that Apple put into OSX after El Capitan. But I may be forced to upgrade. Too late in life to learn Linux.

Maybe the minimalist solution is to upgrade Firefox. But that may require upgrading OSX, and Apple has made it really hard to do that unless you go to the very newest. OTOH I don't know if the newer OSX will run on my 2011 MacBook Pro. If I clicked on "software update" in About This Mac, what would happen? would it just start doing it, or tell me about it first?

The last time I upgraded something, probably Thunderbird but maybe it was Firefox, I had to learn a complicated process to copy & save the User Profiles (they are in a hidden directory), and then install them into the new rev. I don't want to go through that again. I just want to run the dmg file.

There used to be a Mozilla web page with all the versions & you could download the dmg file you wanted.

If I still have problems, I would have to buy a much newer computer. A several year old MacBookPro. But I don't like the "new" disk formatting method Apple created. It saves space by not actually making copies of files, but uses a pointer to one copy. So there is a single point of failure, which makes copies pointless. I want to keep using OSX Extended (Journaled) and I would have to have the seller of the computer do that for me, before I used Migration Assistant to put my stuff on it. I also hate the welded-on hard drive; being able to pull the drive is the best "broken hardware" solution.

I don't recall if El Capitan has the "OSX Recovery" system or if that happened in a later rev.

I use SuperDuper to make a clone of my hard drive as a backup & archive. I wonder if I could connect a copy on an external drive and then startup using the external copy. Then I could upgrade Firefox and see if it works, then do the same for OSX if necessary, and Thunderbird.

Suggestions & how-to info needed. TIA

No way to ASK a question in the Monitor section, there is no GET HELP button.

Application error: a client-side exception has occurred (see the browser console for more information).

In general, getting to the "ask a question" button in the support website is like finding hens teeth.

Didn't there used to be a Discussions forum, where you could see all of the questions being asked?

I refreshed Firefox, now my logins are all gone and when I input them to sites, click on Save, nothing will save. Also my Facebook page is not missing half the stuff on the page.

I am using 78.15.0 esr Firefox browser on early 2008 iMac with OS X 10.11.6. I can't realistically update the OS, as all advice seems to be that anything above 10.11.6 does not work well with the 2008 iMac. 78.15.0 esr Firefox browser is fantastic and I have been happily using it for a few years now. Why force me to stop? Why force me to stop using my super 27" screen iMac, which still works superbly well and would cost many thousands to replace with a new model?

Suddenly when I try to go on Youtube, I get messages that I'm blocking ads. I'm on a Mac-mini using X El Capitan V10.11.6, which is the highest I can upgrade to. I'm using Firefox Browser 78.15 (64-bit) and info shows it's up to date. My old Safari browser still will work with Youtube, but Foxfire is my go-to browser.

Dear Firefox Officer,

I have been requested by e-mail to update my Firefox 78.15.Oesr (64 bits) before the end of March. Is this update compatible with my MacBookPro5,4 with IOS El Capitan 10.11.6? Please note that I cannot install a more recent IOS. Without updating my present Firefox, would I still have access to all my favorite folders and applications? Thanks for your help. Best regards, Marcel Arnould

Hi there, Please see attached image of screenshots of searches on Firefox and Chrome. The Firefox search images are incomplete whereas the Chrome images are complete. This has only started happening on Firefox recently. Can you please help me resolve this issue. I have cleared the cache & cookies, restarted my macbook etc but nothing has worked. Thanks in advance, Paul

I accidentally deleted the blue star on one of my book-marked items and am struggling to get it back. Its very useful so i can see immediately if somethings already been bookmarked. Plus I could remove easily and/or put into other folders. All solutions appear to be to go to customize firefox and to drag and drop in some bar at the top of the page BUT when i do this it STILL doesn't come back. HELP!!! (Please explain in total laymens terms and don't nauseate me with technolingo.)

The top informational header for my Earthlink email has vanished on Firefox. I still receive email but cannot reply/forward via Firefox. a complete and correct Earthlink email is still found on internet and their website.

How do I get the header for my email back on Firefox?

Thank you.

Ron Coulter

Hi, my 2008 Mac Pro uses OS X El Capitan, version 10.11.6 and I am on Firefox 78.15.0esr, I cannot install the new upgrade. Can I continue using the older version of Firefox even though the sync will not work anymore?

My apple computer is 2008 imac and on the 78.15.Oesr and no more updates exist, will i still be able to use firefox web browser after March 31st

Have many many bookmarks saved

Thank You

Mon vieux Imac fonctionnait sans trop de problèmes jusquà présent ! Le 10 juillet 2025, il s’est « planté » sur l’opération suivante :

« Google Chrome -> Gmail -> Google Workspace »

tous mes messages apparaissent normalement quelques secondes puis l’écran se voile et devient inopérant avec la mention :

« cette version du navigateur n’est plus compatible. Veuillez installer un navigateur compatible »

Je n’ai pas les moyens d’acheter un autre Mac !

There are no OS updates available for my computer hardware (nor have there been for quite a few years), just to quash that right off the bat.

The last release for 10.11 is 78.15.0esr (64-bit).

A number of websites do not load or outright refuse to load (the whole cloudflare hosting system, imgur, daily motion, youtube nags about it, even the login system for mozilla support renders quite oddly).

So I'm requesting an updated release. I realize there may be limitations due to libraries that have similarly abandoned 10.11. Thanks.

I am trying to access "Boston Scally" website. When I enter their website to window shop, there isn't a problem, but when I go to order a particular item, the web page goes nuts. I am having this issue with a number of different websites when I try to order or pay for the product.

my mac desk top is version 10.11.6 its from year manufactured 2008 no more updates available, dont understand how to keep my old desk top from 20087 usable with firefox after March 31st 2024

I have received an email requesting that I update my browser before the 31 march 2024 in order to still have access to my Mozilla account.

I wish i could update firefox but my computer and operating system are at least 10 years old. And updating my operating system (to be able to use a newer version of firefox) will create havoc on my computer.

I really like using firefox, I've used it for many years. And it's indeed very practical to be able to sync between my phone firefox browser and on my laptop.

I just wanted to share my disappointment that people like me will no longer be able to use their account and browser properly. Some of us cannot or do not want to update everything all the time and wish to be able to use basic functions of apps/programs they like.

Thank you for this very good product. I'm just sorry I won't be able to use it properly anymore.

If you know of any solution to this problem, I would be very glad to try it.

Thank you