Φόρουμ υποστήριξης - Firefox

This is not a question. It is a complaint. I can't see anywhere else to lodge it.

I am on a mac mini. I keep getting "Secure connection failed and Firefox did not connect" on secure government sites and others that I know are just fine. I'm sick of it. This did not happen till recently and I have not changed my settings or preferences for over a year.

When I get this message these days, guess what I do - I switch browsers. I would like to keep using Firefox. I like it. However, I get this message on too many sites to put up with it any longer. If it isn't adjusted in the next update, I will strongly consider switching browsers permanently.

Even Safari allows me to continue to the site - certificate or no certificate. Blocking me from the site is ridiculous. Fix it.

Please help me someone. For awhile now when I am on Yahoo's home page 75% of what is on the page will not open up. It shows that there is something there like a empty space with nothing in it, and just nothing ever happens. Pretty much any other webpage is fine but Yahoo is a problem... What gives?

When I try to close a tab, if I place my cursor over the X icon and click, nothing happens. If I carefully hover the tip of my cursor over the very bottom of the (invisible) box around the X, the box will turn darker grey and I can finally click and close the tab. I'd estimate the grey box around the X is 1cmx1cm, but only the bottom 1-2mm elicit a response.

I have restarted Firefox and my computer. My browser version is up to date. I am not using any extensions. I am on a 2009 Mac running Yosemite.

For about a month I'm unable to log into my Yahoo Mail account from Firefox on my Mac. All the proper screens appear and I fill them in, but when I hit "login" Firefox hangs. I see the circle thingy rotating indefinitely.

I know this is a Firefox issue because I can access my mail from another browser (e.g. Safari). I think it also relates specifically to Macs because I've never had this issue on my PC.

Firefox is the latest version (78.2.0esr (64-bit)). The Mac is a Mac Pro Mid-2012 running Yosemite 10.10.5.

Thank you!

I'm on an older iMac using OS 10.10.5 Yosemite. I can't upgrade due to work.

Currently I'm running Firefox 78.3.1esr (64bit) and I'm having trouble seeing some websites correctly (see attached screenshot for ebay for example). Sites also take a longer time than usual to render.

Is there anything I can do to make Firefox work well again?

Thanks!

When I opened Firefox I received a "news message" that makes no sense to me. How can I revert Firefox to its former usefulness? There is something about the former installation of Firefox being undisturbed, but I cannot find that installation. Apparently this has something to do with sync-ing my desktop Firefox with other installations -- I've less than zero interest in sync-ing.

What happened to the bookmarks I had stored in the bookmark bar? How do I get those back?

This past week I started getting the Did Not Connect: Potential Security Issue warning when I tried to access my email at Comcast.net. I also got the warning on my banks website when I tried to transfer funds, something I had done many times before. This seems to have started after "upgrading" to version 78.7.1 of FireFox. However, I got the same sort of error using Safari: "Safari can't verify the identity of the website xfinityconnect.email.comcast.net" The certificate shows it is issued by "AVG untrusted CA" from the country "CZ" and State/Province "Brno". Comcast told me to just trust their certificate and I was able to get to my email account, but I am getting the same warning from PNC Bank's website when I try to transfer funds. This REALLY has me worried. Can someone tell me if this is a sign I've been hacked? How can I fix this so I can again transfer funds from my checking account to other banks?

We are receiving this message from Ebay when attempting to list a product (see below). Any suggestions how to work around it please? Thank you.

Did Not Connect: Potential Security Issue

Firefox detected a potential security threat and did not continue to scgi.ebay.co.uk because this website requires a secure connection.

What can you do about it?

scgi.ebay.co.uk has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site.

The issue is most likely with the website, and there is nothing you can do to resolve it. You can notify the website’s administrator about the problem.

My desktop Mac suddenly (July 28) quit displaying page specified fonts, in some - not all - instances, using Inspector reveals affected sites defaulting to Helvetica Last Resort, or failing to display Open Sans via gstatic.com. For comparison, my laptop - same FF v.78.12.0esr, using the same (advanced - default) fonts and colors settings - displays everything properly, as do those same sites on mobile. This is a local problem.

Those sites affected work fine using Chrome, Safari, which indicates system level fonts are loading properly.

Of the sites affected, one thing in common seems to be that they are WordPress/PHP dynamic sites.

I use FontExplorerX font management, which has been stable for years. There aren't any reported conflicts.

Application and system font caches have been flushed.

Firefox has been freshened.

I feel like this may be a corrupted prefs file somewhere, but have no idea how to proceed.

Attached images show different page display results using same search term in Google, DuckDuckGo, and two sites that are affected.