I-Firefox Community Forum

I just installed Firefox on my PC haven't had it on this computer since reinstalling windows - I imported my bookmarks and passwords from Edge, thinking it would be a seamless transition, since I used Firefox in the past without much trouble.

Two weeks on, about 95% of every page I open gives an error similar to the one below, and I have to shift+refresh several times to get it to reload before it goes away, (some sites still don't open).

I wonder how common this issue is, and how people fixed it?

Be careful. Something doesn't look right.

Firefox spotted a potentially serious security issue with connect.mozilla.org. Someone pretending to be the site could try to steal things like credit card info, passwords, or emails.

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Advanced What makes the site look dangerous? The site is set up to allow only secure connections, but there's a problem with the site's certificate. It's possible that a bad actor is trying to impersonate the site. Sites use certificates issued by a certificate authority to prove they're really who they say they are. Firefox doesn't trust this site because its certificate isn't valid for connect.mozilla.org. The certificate is only valid for: *. eero.com. What can you do about it? Probably nothing, since it's likely there's a problem with the site itself. Sites use certificates issued by a certificate authority to prove they're really who they say they are. But if you're on a corporate network, your support team may have more info. If you're using antivirus software, try searching for potential conflicts or known issues. View the site's certificate Learn more about secure connection failures Error Code: SSL_ERROR_BAD_CERT_DOMAIN Jun 5, 2026 10:58:34 AM GMT+10

Proceed to connect.mozilla.org (Risky)

MAC Platform:

             OS:   macOS Taho 26.5.1

Computer: MacBook Pro 16-inch 2021

                    Chip:  Apple M1 Pro (Silicon)
                    Memory:  32GB LPDDR5 (Hynix manufacturer)
                    Graphics:  Apple M1 Pro  GPU Built-In Bus, - 16 Total Cores, Vendor Apple, Metal Support: Metal 4
                    Model Identifier:  MacBookPro18,1
                   Model Number: Z14Z00109LL/A
                   Total Number of Cores:  10 (8 Performance and 2 Efficiency)
                   System Firmware & OS Loader Version:  18000.120.36
                   Activation Lock Status:  Enabled
                   Internal Storage:  SSD 4TB Capacity ;  File System APFS; Free 2.12 TB
FireFox for MAC:   Version 15.1.0.3 (aarch64)

Firefox MAC freezes intermittently , will get spinning beach ball and status shows Firefox (Not Responding) and must force quit FF.

Sometimes FF after fresh down load from the official FF site for MAC will work great for an hour or half a day and then out of now where go into the spinning beach ball , and unable to enter data into any field - completly bricked and FF status shown as Not Responding. Tnis could happen immediately, or after an hour or anytime within a day or two.

No way of deciphering or determining what in the heck triggers it or why - way way too many factors and settings and variables both within the FF registry and the macOS and the activity I may or may not be doing at any given time.

I will say I experienced this when all apps on my MAC were shutdown, no apps up and running, but I do use Backblaze, Mai Backup X, Malwarebytes, Dropbox, MS NTFS Tuxera, DriveDX which all have ongoing background tasks running all the time or at least in the background from time to time.

However, I have used this setup for the last few years with Firefox MAC with absolutely no hiccup whatsoever.

And then immediately after the last FirForx update on Tahoe, just before I applied the latest 16.5.1 Tahoe upgrade is the intermittant freezing with FF started.

Could this be a FF / Tahoe incompatibility issue?

If not, does anyone out there have anything to fix this?

And yes i did a complete uninstall of all of FF hidden Library folders as well as the "firefox.app" itself - if anyone tells me to uninstall all the hidden FF folders and files in ~/Library one more time, then forget it, I am done using FireFox. Been there and done there a number of times the last week, exhausted with that, and doesn't do a thing.

And yes kept deleting and creating new FF profiles and did not fix the issue.

So does some great genius Mozzilla FF Mac SW engineer have any clue as to the real issue and the real fix without sending me on a wild goose chase?

thank you. clb6

Every time I open this site, whether I'm logged in or not, I get an endless text-based menu on the left with giant screen-filling icons in the middle and no content. There's a critical issue with this site. I also tried the support link from the mozilla main page and it gives server errors or a similarly broken page. If that's how it works for basic stuff that AI can solve and run, how reliable is the Mozilla software?

I am attempting to copy a FF profile from a Windows 11 machine I created it and am using it on to a brand new windows 11 machine on which I have also just installed FF on. Both machines are at FF 150.0.3. I have done a search online for the methods to do this but they have both failed for me.

The first one I tried was simply copying the profile from the existing (source) machine to the profile folder in the new machine however FF never recognized the copied profile on the new machine (I am using profile manager on both machines).

I then tried copying the profile using the method we used to use a while back to copy profiles which is to let profile manager create a new profile in the new machine, open FF so that it creates that new profile in the profiles folder then delete the contents of that profile leaving it as an empty profile (with the name of the newly created FF profile). Then, I selected and copied the *entire contents* of the source profile I was trying to copy and pasted them into the newly created profile I had just zero'ed out on the new machine so that the new profile now had the exact same contents as the source profile. I knew this copy was successful because it took a while to copy all of the data from the source profile to the new profile and the indicator showed it copying.

Again, FF did not recognize the new profile when I opened FF with the name of the new profile in the prof mgr.t.

Could someone tell me what I am doing wrong or what the problem may be? One problem I had when I first copied the source profile to my 32GB USB drive was a message saying "inbox folder is too big for destination system. " The source profile is 12.72 GB so there is plenty of room on the USB drive for it to fit. I have no idea why FF would have an inbox file so I just skipped it. The rest of the profile copied to completion once I did that but its size after copying was now only 7.65 GB, about 5 GB less than the original. Could this be my problem and if so, how do I fix it? Thanks for any help.

I have a document that allows me to extend the page for supporting information. However when I move the up/down bar the original document moves but there is no way to move up/down the supporting page.

Hi, I use Firefox all of the time, and I noticed that the wallpapers were given an update of more choices for the user.

That's good and all, but I began thinking about the widgets that are optional when customizing your default Firefox home/new tab. Weather, shortcuts, and stories. All very simple, rudimentary uses, but nothing for fun, like, say, a little Firefox fox that can live at the bottom of your home browser!

Like something akin to a Pou or a Tamagotchi, With food and water on one side of the bottom of your home, bed in the middle, and a little hamster wheel for it to run on. You could click on it and it plays a little animation, or you can click and drag it to either activity previously mentioned and watch it interact.

I just think it'd be fun to have a more "silly" widget for customization on our home pages, while being entirely toggle-able like the other additions.

Thanks for reading.

With love, Paytzilla

I use WhatsApp web with Firefox 151.0.3 on a Macbook Air. In WhatsApp web, you should be able to emoji over a message sent by someone else. One clicks on the smile icon at the side of the message, the emoji pallet appear above and select one of a handful of emojis. Since a recent update, the pallet no longer opens. It's just white space, the cursor does not change allowing you to pick one of the emojis. See screenshot. Is there a fix for this please?

I installed Firefox Developer Edition and I am having the following issues, whenever I go to Indeed and I go to a job posting the browser opens up additional tabs without my permission or me doing so. Also the browser does the same in Canvas when I go to my course the browser automatically opens up new tabs without my permission and also me doing so. The Firefox Developer Edition browser update is Firefox Developer Edition is up to date 152.0b7 (64 bit). The following extensions are installed AdBlocker Ultimate, FoxyProxy Basic, Ghostery AdBlocker For Privacy, Malwarebytes Browser Guard, Privacy Badger, and UBlock Origin. This behavior got super annoying and I don't know how to fix it. Any help on how to fix this would be appreciated. My operating system is Windows 11.

I had this trouble after Firefox's previous update, where the browser would just close as I was in a tab. It had stopped so I thought the problem was fixed. However, it just updated the browser a few days ago and again I'm having a problem where the browser will just close in the middle of me entering information. It does not have to do with which program I am in as it just seems to happen randomly. It does not save any information I've typed in.

hello i just opened my pc today and opened fire fox and i saw an update that makes the browser look better and suddnlly i lost all my passwords and i'm log out of my account