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I've been having problems with some websites not displaying content, others displaying error messages. So have been going through the Troubleshooting Mode and diagnostic process.

The cause is the MS CoPilot extension for Firefox.

Useful in other ways as I discovered several other extensions I don't need, hence have remained disabled.

Normally when you starting to write a new email, Thunderbird will set the 'from' address to the address of the account whose mailbox you're current browsing.

However, I have a saved search that entirely contains email from my secondary (work) account, but if I start a new email while browsing it, it picks my default (home) email address. This has caused me to accidentally send emails from the wrong address more than once!

Is there any way to change it so that it'll set the 'from' field of new emails to my work email when browsing that specific saved search?

Computer crashed. After restoring, Google calendar is not syncing. No error message that I can see. I unsubscribed and resubscribed to no avail. I have no clue what to look for and searching here is not helping as all the references to this are years old. Can someone help me figure out why this is happening?

I installed Firefox on a new Dell laptop and imported the bookmarks from FF on old laptp. On my old laptop things are OK. On the new laptop Firefox will ONLY store new bookmarks in the Recently Book... folder, no matter how many times I choose a specific folder from the Location dropdown, even if I only choose Bookmarks Menu without subfolder. Show Editor is checked. I have to manually move new bookmarks from Recently Book..... This is annoying. Can you help? I have not found a forum with this question.

Several instances of this "verification.exe" malware appear on download history when firefox is opened as shown. Remove from history or clear downloads doesn't eliminate them. They reappear whenever firefox is opened.

Suggestions to eliminate this nuisance welcome.

I am running the latest updates to Windows 10 Pro x64. One of my monthly bills is paid at

1) https://e.synchronyfinancial.com/

which, in Brave, redirects to

2) https://lowes.syf.com/accounts/login

Inputting either link in Brave gets me to the finish line but the first link above fails in Firefox with the "Secure Connection Failed" message and dumps me at https://www.synchrony.com/accounts/. The second link does the same.

Is there any way to troubleshoot the problem?

I HAVE tried shutting-down Malwarebytes but the result was the same.

This is the only site on which I have encountered this issue. All that I can determine at the moment is that that certificate is from DigiCert and the expiration date is in 2025, i.e., this is not a Symantec cert.

DigiCert Global G2 TLS RSA SHA256 2020 CA1 Organization (O) DigiCert Inc Organizational Unit (OU) <Not Part Of Certificate> Issued On Wednesday, February 7, 2024 at 6:00:00 PM Expires On Tuesday, March 4, 2025 at 5:59:59 PM

I don't use Google Chrome browser nor do I use MS Edge. After using the Mosaic browser, I switched to Netscape Navigator, then to Mozilla, and, finally to Firefox. I am not looking forward to migrating to another browser. ;-)

I am unable to get printing to work correctly using Firefox with Epson POS TM-T20 thermal printers we have a work.

We're currently running Firefox on Debian 12. I've tried both the ESR version that comes with the Debian repository and the latest Firefox as a flatpak.

When printing to the receipt printer, the only thing that is printed is the left-hand most part of the logo and a little part of the text and this occurs towards the right-hand side of the paper. I've changing all of the settings, resetting the settings for the print in about:config, but nothing seems to work.

I'd love to get this working so that staff could use Firefox. I'm attaching an image of what the print job looks like and a screenshot of what the print-preview shows.

I don't want to be able to scroll the page by selecting text. That's what the scroll wheel is for. More often than not this 'feature' just results in frustration as scrolling the page selects more text. Can I just disable this altogether somehow?

I am sure someone has asked the question before but couldn't find the answer. Why dark mode has to be different than other dark modes on other apps. Colours really does not match nicely with my phone. I used Samsung Fold and its really unpleasant.

hi can anyone tell me how to get my saved passwords back into ff. they got deleted somehow by Clean Disk app

instructions ive found on web are for everything except what i need thanks

As stated in the question, messages older than 1000 days are not deleted (this is a POP server). This is on my Desktop which is my primary PC. I also have a laptop using Thunderbird with "Leave messages on server" but with neither option (Number of days or Until I delete them) checked. The purpose of the laptop settings is that since it is not my primary PC I don't want it to delete anything from the server.

I did quite a few searches and the closest thing I found was another user who had migrated to Thunderbird after using another mail client for years, and it sounded like after they installed Thunderbird, they imported their old emails from the old client and then began using Thunderbird. The explanation they got was that any emails that had not been downloaded from the server by Thunderbird would not have a download date in Thunderbird and would therefore not be subject to the "older than xxx days" setting. That scenario doesn't apply to me because I have been using Thunderbird exclusively for at least 5 years, so all emails on the server that are less than ~1825 days (5 x 365) were downloaded by Thunderbird. All emails older than 5 years have long since been deleted from the server manually.

Either I am misunderstanding the "For at most xxx days" setting or something is not working properly.

I am unable to reach Facebook on both Firefox and Waterfox.

Other browsers (Opera, Edge, Chrome) are able to access Facebook.

I can access other Meta-owned sites (Messenger.com, Instagram, Threads) on Firefox and Waterfox.

This issue exists on both my desktop (Windows 10) and laptop (Windows 11).

This issue does not apply to Firefox for iOS or the Facebook app.

All apps and OS's mentioned are up to date.

This has been going on for over a week now.

I got this error message and don't know what to do with it. All the other subs under gmail (sent, all mail, etc) are fine. No current inbound gmail displays under "inbox," though it does in "all mail." While checking by using gmail app, everything seems fine. How can I reopen or repopulate my inbox? Thanks.

I had been using Firefox on my iPhone for forever. All of a sudden the icon just disappeared, so I can no longer use it as my browser. When I check my apps in Settings, it's there, and checked as my browser, but there's no longer an icon to click on. I went to the app store thinking it had somehow become deleted, and instead of being able to get the app, it just says Open, meaning that it should be on my phone. How do I get the icon back? The way it is now, I can't even delete and re-install it.

Firefox just will not print anything at all. I have tried all the suggested fixes; everything else on my computer prints fine to either directly connected printers or to network printers. The 3 other computers on my home network all print to all printers from Firefox. I have deleted Firefox and reinstalled I have deleted all printers and reinstalled When I do try to print with the print queue open, the file spooling briefly splashes up and disappears quickly. If I download a PDF from the web, it will not print from within Firefox, but will print from Acrobat or Nitro I have changed antivirus from Eset to Webroot anywhere. No improvement and in between with no Antivirus, Firefox would not print. Any thoughts, as I had to change browsers and I want to get back to Firefox? Help!!

Firefox 125.0.2 on Mac

When I press shift+cmd+D to bookmark all open tabs, instead of the links being saved to the designated folder, they are all saved to "Bookmarks Menu". The designated folder itself also appears with these links but it itself is empty.

I would expect shift+cmd+D to bookmark all links in the folder and the folder to appear in "Bookmarks Menu". This is what use to happen ages ago. I'm not sure what caused the change in behavior. Anyone have any ideas on fixing this?

I'm using Firefox 124.0.2 (64 bit) on Windows, and every few days I get the error about using an older version of Firefox, with Exit or Create New Profile options. I then run "firefox -allow-downgrade" from the command prompt and everything works fine... for a few days, when it happens all over again. This only started happening a couple of weeks ago, but it's getting really annoying. How do I stop it (short of using something like Waterfox or Brave).

I downloaded the new update this morning and I cannot separate my categories any longer on my home page. I keep them in categories on the 4 separate rows and then separate them by skipping a square. I cannot do that any longer and do not like the jumble of the homepage now. How can I keep the blank spaces that are located at the bottom of the rows to separate my categories?

I've made an extention which works fine when I test it using the temp mode on firefox. When I attempt to install from file however I'm told it could not be installed as it appears to be corrupt. Below are the package.json and the manifest.json:

package.json

{

 "name": "ext",
 "version": "1.0.0",
 "description": "",
 "main": "contentScript.js",
 "scripts": {
   "test": "echo \"Error: no test specified\" && exit 1"
 },
 "keywords": [],
 "author": "",
 "license": "ISC"

}

manifest.json

{

 "manifest_version": 2,
 "name": "SKUORG",
 "version": "1.0",
 "description": "Organises SKUs on WooPage",
 "permissions": [
   "activeTab",
   "webNavigation",
   "<all_urls>"
 ],
 "content_scripts": [
   {
     "matches": ["<all_urls>"],
     "js": ["contentScript.js"]
   }
 ]

}

I have tried on two devices / installs of firefox and have followed the steps I could find on this page : https://support.mozilla.org/en-US/kb/unable-install-add-ons-extensions-or-themes#w_corrupt-extension-files

If you have any suggestions please let me know.

I reset a computer, deleting all my files. I want to use, as I do elsewhere, Firefox as my browser. And though I signed into Firefox using my old credentials, none of my bookmarks are there. How do I complete this setup?