All Products Support Forum

I use Firefox for years. Two days ago, I turned on my HP with Windows 10 and I got a pop up message something about Error Platform 126.0 XUL Runner is not compatible. I could not access Firefox, Google, or the internet. I uninstalled Firefox and reinstalled, but after that, everything runs very slow. Each time I go into a website, it can take up to over a minute to pull up! I checked all the trouble shooting forums in Mozilla and tried just about everything. I went into About:profiles and created a new profile. It it did not make any difference. I went back the profile I had before the XUL error because my bookmarks were there. Still slow. I cleaned out the cache, in both Firefox and my Windows 10. made no difference. I only have two extensions in Firefox. I don't know what else I can do to fix this.

Sadly, I am now forced to leave firefox. My passwords are getting "forgotten" more and more each day. Did i get hacked? Few passwords like proton mail I don't actually have anywhere else. Auto-Backup of firefox seems to be of the same day as the original??? So it loses the data then saves it twice? who designed this? I'm angry, not at firefox/mozilla. angry at myself for putting my trust in the first place. Chromium doesn't sync so it leaves me with chrome FFS. Does someone has a magic wand to recover the lost data? login.json is same day as original so not an option.

Tēnā koutou (Hello everyone),

I deleted Firefox to re-install it after playing with profiles and that not working how I wanted it to (yet). I uninstalled the app from the applications and the library on my Mac and reinstalled Firefox. Now when I open Firefox it says that it's up and running but no windows actually open up for me. I have uninstalled and reinstalled it again and it still won't open windows. I have to force quit Firefox as nothing shows up in my top tool bar to even show Firefox as open.

How can I get Firefox to actually install and be functioning on my computer again?

Running (as of an hour ago) macOS 14.5 (was using previous up to date OS when I installed Firefox again.

TIA

Hello: I’m running iOS 17.3.1 on iPhone. The problem I’m experiencing: I used to see the Recommended by Pocket articles on my iOS Firefox homepage, but they stopped appearing a few weeks ago. I’ve searched for a resolution, but all I can find are the steps for customizing/personalizing my HomePage: the problem is that although I’m signed into my Firefox/Mozilla account and have chosen Firefox as my Homepage for New Tabs, and I’ve signed out, restarted the app and changed my Firefox settings several times, the option: ‘Recommended by Pocket’ ( along with the actual articles appearing on the homepage) doesn’t even appear anymore: I’m at a loss as to locating that option, as well as, again, seeing the Recommended Articles as they appeared previously. Thanks so very much for any help !

On my Android phone, the "close private tabs" notification keeps reappearing no matter how many times I tap it or swipe it away. Only way to get rid of it is by force stopping Firefox. Weird thing is that this issue doesn't repro 100% of the time either.

This is happening on Firefox 126.0, on my S23 Ultra running Android 14/One UI 6.1

Hello, my Cox email account was migrated to Yahoo mail. I can receive emails but now I can't send emails from Thunderbird. I've triple checked server settings. Please help. Thanks-Vince

This is the message I get and it does this with all email addresses.

Sending of the message failed. An error occurred while sending mail. The mail server responded: Request failed; Mailbox unavailable. Please verify that your email address is correct in your account settings and try again.

Firefox recently 'crashed' on my desktop PC. It asked me to restart in safe mode or restore to the original state. I chose to restore. This meant that I had to re-add all of my add-ons and log back into my favourite sites as my log-in details had disappeared. I got everything back to normal eventually, except for one very important site. I am now no longer able to log on to my bank website to review my accounts. I get an error message on the site saying " Log on error. You need to enable cookies in your browser to logon to Internet Banking." I have never had this problem before. I am able to log on successfully on my tablet, and also via a different browser on my desktop PC. I'm not a tech expert so this is very frustrating. I've tried clearing cookies/cache/data in the settings but no success. I really need to access my bank accounts on my desktop as I find this easier. Hopefully you can help as I don't want to use a different browser.

Best regards Andrew Sambrooks

when i go to my amazon vendor central account i cannot access purchase orders. i get to a blank page that has this code on it:

'),t.close()}();

no idea what that is or why it is happening. then when i go to geminisound.com i keep seeing this in the top part of the website:

"); } else { win._boomrl = function() { bootstrap(); }; if (win.addEventListener) { win.addEventListener("load", win._boomrl, false); } else if (win.attachEvent) { win.attachEvent("onload", win._boomrl); } } doc.close(); } var link = document.createElement("link"); if (link.relList && typeof link.relList.supports === "function" && link.relList.supports("preload") && ("as" in link)) { window.BOOMR.snippetMethod = "p"; link.href = window.BOOMR.url; link.rel = "preload"; link.as = "script"; link.addEventListener("load", promote); link.addEventListener("error", function() { iframeLoader(true); }); setTimeout(function() { if (!promoted) { iframeLoader(true); } }, LOADER_TIMEOUT); BOOMR_lstart = new Date().getTime(); parentNode.appendChild(link); } else { iframeLoader(false); } function boomerangSaveLoadTime(e) { window.BOOMR_onload = (e && e.timeStamp) || new Date().getTime(); } if (window.addEventListener) { window.addEventListener("load", boomerangSaveLoadTime, false); } else if (window.attachEvent) { window.attachEvent("onload", boomerangSaveLoadTime); } if (document.addEventListener) { document.addEventListener("onBoomerangLoaded", function(e) { e.detail.BOOMR.init({ ResourceTiming: { enabled: true, trackedResourceTypes: ["script", "img", "css"] }, }); e.detail.BOOMR.t_end = new Date().getTime(); }); } else if (document.attachEvent) { document.attachEvent("onpropertychange", function(e) { if (!e) e=event; if (e.propertyName === "onBoomerangLoaded") { e.detail.BOOMR.init({ ResourceTiming: { enabled: true, trackedResourceTypes: ["script", "img", "css"] }, }); e.detail.BOOMR.t_end = new Date().getTime(); } }); } })();

please help.

Hello Support, when I create an email in my primary email account (karl.volger@gmail.com) and sent it out, it also shows as sent out in a different gmail account. Any reply is being sent back to me is not going into my primary account, but to the other account, my email is shown being sent from there, and not from my primary account. All the settings in my primary account are shown the correct settings for sending and receiving emails. The only thing I did notice that I have dual folders in the primary account of Drafts and Sent..... Please see the attached image.

Thank you and best regards, Karl Volger

Every time I open Firefox, it crashes immediately and does not trigger the crash report window. Even though I have checked and enabled the option to send crash reports in the settings, it doesn't work. When I look for crash report logs, it shows that I have not sent any crash reports.I've tried many methods to view the crash report, but it just shows that there are none. I only found this information related to crash reports in the installation files.(you can see it in the picture)，hope someone can answer this question, thank you very much.😭

Every time I open Firefox, it crashes immediately and does not trigger the crash report window. Even though I have checked and enabled the option to send crash reports in the settings, it doesn't work. When I look for crash report logs, it shows that I have not sent any crash reports.I've tried many methods to view the crash report, but it just shows that there are none. I only found this information related to crash reports in the installation files.(you can see it in the picture)，hope someone can answer this question, thank you very much.😭

First, I am supporting a family member, who has TB configured on two separate machines. Configuring for Comcast IMAP+SMTP, in the usual manner; nothing esoteric about that, all very routine.

Machine A seems to be working okay, no errors. TB up to date on this machine, connected over an ethernet wire, if that makes any difference.

Machine B, getting spam prompted over IMAP 1014 errors. No other information is provided than 1014.

I have tried dropping the account configuration hundred percent, restarting TB, re-adding the account configuration, to no avail. Still spam 1014 errors.

I did happen to notice TB needed an update, so I did that as well. Still 1014 errors.

I have also tried dropping that email saved password from the saved passwords, and responding to the subsequent re-enter password prompt. Also to no avail.

What if anything might have changed, and how can we contend with this? What is so corrupt, do we need to be mucking around in any AppData files, roaming files, etc?

We are not the only ones, apparently, to have bumped into this issue. Not sure if this is also Comcast specific, since a recent TB and/or IMAP specification change, i.e. maybe we try with a gmail account, for instance.

Wondering also, is it IMAP and/or Comcast somehow tieing Machine A to the IMAP and not releasing that association? Knowing a little bit about IMAP in this regard. And/or somehow now prohibiting Machine B+ from establishing a connection?

Our company uses FreshService. It has several module, but apparently not all use the same site. So when I Login to the our company FreshService site it take me to my dashboard. Works fine. I can view tickets, assests and just about everything with one exception. Projects.

Apparently Projects is from another of their sites:

Instead of from freshservice.com it appears the content is from freshrelease.com. While in any other browser this works, in Firefox it gives an error:

Firefox Can’t Open This Page

To protect your security, pinerestchristianmentalhea.myfreshworks.com will not allow Firefox to display the page if another site has embedded it. To see this page, you need to open it in a new window.

what can I do to make this work in Firefox. I normally use Firefox as my main browser, but I can't have the main site I use everyday be less usable.

Thanks for all you do, been an avid Firefox user since the Netscape Navigator days!

It takes a lot longer than it should to load my home page, MSN. This problem is more pronounced with Firefox than other browsers. What can be done to load the home page faster? And, in general to load websites? Can someone help? Thank you.

I couldn't sign in to my Ring App and received Incompatible Browser error message. Ring Support told me the new version of their app, which uses my default browser to log only works with Chrome or Samsung Browsers (I've never heard of Samsung Browser). Furthermore, they said I had to delete Firefox from my mobile device in order to get Ring App to work.

This seems ridiculous. What's the problem here please??

I prefer to use Firefox, why do I have so many compatibility issues?