Firefox Community Forum

An e-banking site that worked in Firefox for years no longer works in 145.0 under Ubuntu Studio 24.04.1 This is the help page for the error I am receiving: https://support.mozilla.org/1/firefox/145.0/WINNT/en-US/connection-not-secure However, the error message I received (see attached image) is not listed there. Since the e-banking site hasn't changed in ages, I suspect instead something in one of the recent Firefox updates. The site works fine in Safari under Sequoia 15.5 on a MacBook Air, and I can login in Firefox, so I doubt that there is a problem with the site's security certificate. Since both the MacBook Air and the Ubuntu PC are on the same LAN, I also doubt any network obstruction. I haven't found a wax to get any more detailed error information and would be grateful for tips on how to do so. Meanwhile, I would like to at least change from the standart Firefox release to the ESR veersion, but find no information on how to do so. I have currently set up Firefox to be pulled from the instructions in https://support.mozilla.org/en-US/kb/install-firefox-linux#w_install-firefox-deb-package-for-debian-based-distributions-recommended under "For Debian Trixie and Newer" How can I switch from my current Firefox under Ubuntu to an ESR release?

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.