Firefox Community Forum

I run normal firefox on linux. Fully up-to-date. Every time I quit the app, it reverts to a version of my profile from a month ago, and loads all the tabs I had open then, and then receives all the tabs that I sent to the device in the interim (~1 month). As I speak, it just caught the 60 or 70 tabs in this window.

I tried changing the name of my profile folder to randomstring.defaultOLD and changed one of the backups to randomstring.default. This didn't change the behavior. I'm still stuck in the loop. I saved my tabs with onetab, because firefox isn't remembering my session anymore. I thought it was something to do with updates, like it only loses its mind upon updates, but that's not true. It thinks it's updating firefox EVERY TIME, because the one time it's loading to 1 month ago it was updating, but I'm 100% sure there are no updates to firefox in my linux. It's just hallucinating.

The articles on restoring from backup are outdated. They say to use an html file. There is no html file. It's just folders for profiles, not html files. HELP!

Hi!

We have a intranet site that works in Edge and Chrome without issues with the site added to "internet options". But for some reason we are getting 401 Unauthorized when trying to access it from Firefox. I have tried adding the urls to: network.automatic-ntlm-auth.trusted-uris network.automatic-ntlm-auth.allow-proxies: true network.automatic-ntlm-auth.allow-non-fqdn: true network.auth.force-generic-ntlm: false network.auth.force-generic-ntlm-v1: false

Ingocnito mode , same error. I have tried disabling all plugins. Disabled DNS over HTTPS.

HTTP/1.1 401 Unauthorized Server: Microsoft-IIS/10.0 WWW-Authenticate: Negotiate X-Powered-By: ASP.NET Date: Mon, 25 May 2026 08:15:41 GMT Content-Length: 0

Regards Rasmus

when i use Chrome or edge to access yahoo email I can write & edit. when using Firefox browser; I cannot write & edit/highlight/change text colours etc before sending. tried deleteing & re-installing Firefox . please help. Driving me crazy rsvp

My Firefox browser shows the built-in icon (x VPN) in the upper right of the screen. If I click on the icon it starts the process that results in successfully logging into my mozilla account and the screen prints out the following: Next: Turn on VPN

One more step to boost your browser’s privacy. Go to the open panel and turn it on.

But the screen shows no open panel! If I click on the (x VPN) again, the process starts over.

I have checked Settings > Privacy & Security and made sure that the entry "Allow Firefox to improve features, performance, and stability between updates" is checked. I have made sure that browser.ipProtection.enabled is set to true; browser.ipProtection.everOpenedPanel is set to false; and I see no entry for browser.ipProtection.openedPanelWithLocation.

I have signed out completely from the Mozilla account, restarted the browser, and logged back in to restart the process using (x VPN) but it still doesn't work.

Over and over again when I try to open a website I get the notice that says "Secure Connection Failed". I have to restart my laptop and then I can open the website that I tried to access before. I've tried using the suggestions in the forum with no result in solving this problem. I've attached the page that comes up showing the problem.

FF 154.0 will not create a backup file. Trying to create an initial backup to my D: drive (2 TB Samsung 990 Pro M.2 Gen 4 NVMe SSD with 86% free space). WIN Pro 25H2 Operating system, Intel Core i7-14700K CPU; 64 GB DDR5 - 5600 MHz Corsair Vengeance DRAM.

No matter what I do I can't get the initial backup to complete even though the D:/Restore Firefox folder was created. I consistently get this message, “Hmm, there was a problem with the backup. Please try again in a few minutes.” The message result of browser.backup.backup-debug-info is:

{"lastBackupAttempt":1787153673,"errorCode":9,"lastRunStep":13}

Weathersa.co.za recently launched a new website. There is a function to select towns for a forecast. The select function is not working on Firefox Windows. It seems that Privacy Badger may have issues with the site on Windows. If I turn all ad and track blockers off the site works correctly on Firefox Android. I cannot get it to work properly on Windows. Has anyone else has this problem, Suggestions to resolve this please

How can I stop Firefox from automatic granting sites cross-site cookie permissions (see screenshot)? The problem is that the cross-site cookie(s) granted for a site more often than not is completely unrelated to that site. This problem is very frustrating.

I have tried changing several settings in Tracking Protection but nothing has stopped Firefox from auto-granting these permissions. I have for example turned off "Fix major site issues (recommended)" but it has not changed this behavior.

Thankful for any help.

I have two windows PCs, both running Firefox 154.0.1 (64-bit) on Windows 11 Pro. One PC has the Daily Crossword widget, the other doesn't? When I go into Manage Widgets, the Daily Crossword option is present on the first PC, but not the other? It's possible that I may have hidden the Daily Crossword widget on the second PC, but if so, how do I unhide it? The PC without the widget is connected directly via a LAN cable to my router, while the other PC is connected to the same router via a Google WiFi mesh.

I am suddenly finding I cannot scroll a thread in Chatgpt! What changed in the last 2 days? It has been working fine for 2 years. I am on OS mojave 10.14.6 on a 2015 Model Imac.

I use the setting brower.search.widget.new = false to customize my search bar. Since the latest update of Firefox (Firefox 154), I noticed that spacing between search results is larger and I don't like it as much. I am hoping to revert to the previous version where the spacing is more tight and easier to navigate. The first pic is Firefox 154 and the second is a previous version (147).

Good afternoon

recently i tried just realise my firefox can't played HEVC streaming video like twitch etc. (1st pictures)

i check on other browser such as Chrome, Edge, etc. it's played normal i check on google all about config

like media.wmf.hevc.enabled , media.hevc.enabled , dom.media.webcodecs.h265.enabled all set to true. checking on about:support i found it's not supported (2nd screenshot)

i check on Powershell are like this :

C:\WINDOWS\system32> Get-AppxPackage | Where-Object {$_.Name -like "*HEVC*"}

Name  : Microsoft.HEVCVideoExtension Publisher  : CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US Architecture  : X64 ResourceId  : Version  : 2.5.33.0 PackageFullName  : Microsoft.HEVCVideoExtension_2.5.33.0_x64__8wekyb3d8bbwe InstallLocation  : C:\Program Files\WindowsApps\Microsoft.HEVCVideoExtension_2.5.33.0_x64__8wekyb3d8bbwe IsFramework  : False PackageFamilyName : Microsoft.HEVCVideoExtension_8wekyb3d8bbwe PublisherId  : 8wekyb3d8bbwe IsResourcePackage : False IsBundle  : False IsDevelopmentMode : False NonRemovable  : False IsPartiallyStaged : False SignatureKind  : Store Status  : Ok Capabilities  : inProcessMediaExtension,

                   uniqueAppPackageCapability

in summary it's installed and running.

i will be happy if you can guide me on how to enable it. because tbh Firefox are my daily drive

thanks before

For the last few days after an hour (or so) of use, browser windows try to load but don't finish. I checked the Mac activity monitor and see that FirefoxCP webextensions is hogging memory--8GB! MacOS 26.6.2, Firefox for mac 154.0.1. Did the same thing for MacOS26.5.2. Is AI doing in performance? How can I find what to turn off?

When searching for any type of URL or page on Firefox, unexpected things have been occurring. The most common action is that the Recent Browsing page opens up instead of the page I was seeking. I can get to that page by clicking the tab, but it obviously should not be happening. Sometimes, I only see a completely blank page in white or gray. Again, I can get to the page by clicking the tab. A momentary blink occurs regularly when going to a new page.

I have cleaned up any unused or unimportant extensions and add-ons, since that was suggested as one cause. So far I have not taken a suggestion to clear all cookies and cache because of all the beneficial browsing that deletes. I have also not totally deleted the Firefox app because I am not sure a reinstall of all of my bookmarks, the homescreen with my 32 preset URLs, etc. will come back.

So I am looking for advice on what steps I should take to resolve this, in order of first taking the least destructive and problematic actions. Thanks, Joe

I'm using Firefox since 2013. Whenever I reset windows I always keep a copy of my profile folder. You can check the attachment. There is 83 copies of backup.

About my email address linked to Firefox [redacted] @ovi.com, Account Disconnected, Sync is off. Sign In to synch hit the OTP wall and OVI email is discontinued. Here is important details: "Nokia Mail powered by Yahoo was discontinued in March 2015. Beginning in March 2015, users were no longer able to sign in, access their existing emails, or send and receive new messages using their Nokia Mail or Nokia Chat address. If they want to save their existing emails, they must copy their existing Nokia Mail to another email service or to their computer before March 2015" Source: https://en.wikipedia.org/wiki/Ovi_(Nokia)#Ovi_Mail

Microsoft offered migration to their Microsoft account to keep backup of [redacted] @ovi.com to their [redacted] @live.com. Any email sent to [redacted] @ovi.com doesn't reach to anyone, it is discontinued. [redacted] @live.com is currently active and maximum internet accounts are linked to [redacted] @live.com.

Also you can match my profile photo from Facebook and LinkedIn. Facebook: https://www.facebook.com/ [redacted] LinkedIn: https://www.linkedin.com/ [redacted]

If you need any further information regarding this issue, like any old OVI email or any further information, I am willing to provide them. I just want to replace [redacted] @ovi.com to [redacted] @live.com that's all.

Thanks for reading. Looking forward for a solution.

edit: redacted emails from public community support forum.

firefox on windows 11, keeps blocking my camera and Microphone despite express permissions to allow, i look in permissions and the site is clearly marked to allow camera, but when i goto sitye, no camera or mic is allowed until i delete the permission that is supposed to allow it.

I have counselling at https://survivorswestyorkshire.whereby.com/chrissy

I allow my camera and mic.

I return to the site and it tells me camera and microphone blocked.

I goto0 settings>Permissions>Camera

It clearly states that the website is allowed to use the devices, but when on the website the devbices are blocked. Whats messed up is, if i delete your settings>Permissions>Camera, it allows me to use my camera and mic, until i refresh the webpage and its blocked again.

This makes zero sense and is every reason for me not to use Mozille Firefox as a browser at all.

Sincerely

Complex Autist