Firefox Support Forum

I just updated Firefox to latest version and cannot run it on my current OS. How can I get back to the older version I was using until I'm able to upgrade my OS? As it stands I cannot access Firefox on my Mac. The icon has a big do not enter cross on it. Please help. Fast. Thanks.

I have an older MacBook Pro with iOs 10.111111... I tried to update myFirefox browser and found out after the fact that it's not supported by the version I have. I cannot Update the iOs without buying a new McBook... Sadly, no $. Can you assist me in procuring a Firefox version or a link to one compatible with iOs 10.11111...??? I love my Mac but I can't stand Safari...

Thanks ever so much...

Kate

Hi All,

I'm using an iMac with OS X El Capitan 10.11.6. I am using Firefox 78.15. When I click on links, nothing happens. I have to right click and select "open link in new tab." I suspected it might be an out-of-date Add-On. So, I disabled all add-ons and restarted Firefox. It had no effect.

This problem is getting annoying Any assistance is greatly appreciated.

I have the latest version of Firefox 78.15.0esr (64-bit) on my Macbook Pro. Netflix says, "Looks like your browser is no longer supported. Please install the latest version or install another browser. Error Code F7121-3078" (see image 1).

Netflix streaming works fine on Opera, but I can't get it working on Firefox, even though it was working fine on Firefox a couple of days ago (Sept 15, 2022). Any help you can offer would be appreciated very much. I have two plug ins: Facebook Container and EFF Privacy Badger. There is no update available to update Firefox. It appears that when the new version of Widevine updated yesterday (see image 2), the browser stopped working for streaming on Netflix. Widevine version 4.10.2209.1 (updated Sept 16, 2022).

I am no longer able to log in to eBay using Firefox. I am using Firefox 78.15esu bc I have an older Mac that will only support up to Mac OSX 10.11. I was able to use eBay up until this morning when the site asked me to log in again... and verify that I am indeed a human through the hCaptcha checker. The checker cycles between identifying horses and lions... and every time, I seem to pass but then comes the message "Failed to pass Captcha, Please try again." I can access eBay using Safari and Chrome. Right before the failure today, the rendering of the eBay pages was odd... needed 3x the screen width to see the whole page. eBay says that the problem is on the Mozilla side of this issue... mostly because I can use a different browser without problem. I think I am in agreement with them. I don't really want to use a different browser but I will bc I like eBay, too. Please advise.

I just "discovered" the existence of ESR, as 78.15 on my wife's beloved 2009 Mac OS 10.11. Our newer Mac is ok with OS 12.6 and Firefox 110, auto updating. We dislike relentless whiz-bang changes, and need just email, simple games, and basic browsing on the older Mac; email, moderate browsing, flight simulation, and some streaming on the newer. In plain English, please, what are pro and con of switching it to ESR?

For the past several weeks when I click on Messenger from the Facebook web page I get a blank page with the Facebook header. Same if I click the little shortcut button (brings up a blank box). I've cleared all cookies and cache but no change. I do not have this problem with Safari so I believe it is a Firefox issue and not a Facebook issue.

been spending the day updating passwords and i finally had to update my firefox account password, sadly i had lost the original password so i had to fully reset it. Idk if that contributed to the issue at all but ill mention it just in case this is a known problem. now im trying to sign back in and it just keeps getting stuck loading saying "working" some other things, I use waterfox as my laptop runs macOS 10.11.16, so I'm also worried that this is not a bug but a "feature" intended to push users to update their browsers. as i type this its been "working" on signing me in for about 5 minutes and i doubt its doing anything but spinning that wheel around for show. i was able to sign back in on my phone, any help?

Two questions regarding FireFox ESR for legacy macOS:

Is there any plan to make Yelp compatible with FireFox ESR? It hasn't worked correctly for a couple of years…

With the conversion from Intel to Apple Silicone macs, any idea how much longer will FireFox ESR support the Intel platform?

Hi - Thanks in advance for taking a look. I hope I can explain the problem correctly.

In Firefox 78.15.0 (my MacbookPro must run El Capitan MacOS 10.11 to accommodate certain legacy music software), I saved a website. When I attempt to open the saved site, it opens without proper formatting and without photos. The missing photos are present in the downloaded (saved) folder as JPGs. They just don't appear in the re-opened page.

I have attached three PDFs to illustrate the problem.

The PDFs called <01 Pg1> and <02 Pg2> show a close rendering of how the original online newspaper is supposed to look. The main photo appears above a caption, followed by the writer's byline and then the article. I added red comments to indicate what gets changed in the saved version.

The PDF <03 Open saved website> shows the re-opened website file. Photos and original formatting are missing. I have annotated pdf 03 to indicate the major errors in missing photos and formatting.

I opened the saved site on a different MacbookPro running MacOS Catalina 10.15, but the problem persists.

The original website has been taken down, so I can't try another save/download. Any suggestions would be greatly appreciated. If someone needs the entire saved article, I am willing to send it.

Thanks so much for any assistance. Tucker

When I try to log on to hmnow.com, all I get is a white screen. I worked with Hallmark support, but they couldn't figure it out even though I have a paid subscription with them. I've rebooted my Mac and it says I have the latest Firefox version installed. This has gone on for weeks. I've had no problem with any other website.

Hi. In the past week, my Firefox has been giving me this message for many sites - all of which I've landed on before and I trust. Firefox wants me to contact the website owner which is not do-able. Any suggestions? Thx!

Here's the error msg I get: An error occurred during a connection to www.google.com. PR_END_OF_FILE_ERROR The page you are trying to view cannot be shown because the authenticity of the received data could not be verified. Please contact the website owners to inform them of this problem.