Alle produkter Community Forum

After updating to Firefox 147.0.3 all of my browser history (along with open tabs at the time of updating) is lost. I just updated to Windows 11 workstations (plus a couple of older Windows 10 workstations) to the current (Feb 2026) updates too. However the history data was lost before the Windows updates. I noticed that with the previous update of Firefox that saved login information was also lost. Who is doing your program updates, a chimp?

In the past when an update was done the browser would open back up with all of the previous versions session tabs in tact. But not now.

I've lost several tabs of research that was being done. Based on what has been happening, I will HAVE to change to some other browser. This is a shame as I've been a loyal Firefox user since day one. Good bye Mozilla and Firefox.

Hello, I have two microsoft email addresses linked to Thunderbird, one @hotmail.com and one @outlook.com. I have been using Thunderbird with them both fine for some time. Recently, the outlook.com account has stopped sending emails via Thunderbird. As far as I can tell, this was out of nowhere, and I hadn't changed any settings. It still receives emails.

Both accounts use the same SMTP information, and the hotmail.com continues to work with those details.

I have tried changing the settings and even deleting and readding the account but it hasn't fixed it. I have also checked the outlook account is still IMAP and POP enabled and it is.

When I do try and send an email, I am told: "Login to server smtp.office365.com with username [edited]@outlook.com failed. with options to Retry, Enter New Password (which loads a new window briefly but then disappears) and Cancel."

When I cancel, I get this message: "Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtp.office365.com timed out. Try again."

My server settings, on both accounts, are: smtp.office365.com Port 587 STARTTLS OAuth2 And the user name matches the email.

Does anyone know what I might be doing wrong, and how I could fix it? Thank you!

When I try to exit the fire fox browser I delete all cookies then select exit and close it out. However when start my computer the next time I get a message that fire fox is already running and if I hit the cancel button it freezes the screen and I have no options to move on. So how should you do a normal shutdown off the browser?

Hi All, this question seems to come up on various forums, but I cannot find a definitive answer.

We run the Enterprise version of FF (140.7.0esr (32-bit)), the product installs and includes the scheduled task that checks for updates at a regular interval. This works, but the update only ever seems to be applied once the browser is launched.

According to the documentation there is the following setting:

Software\Policies\Mozilla\Firefox\AppAutoUpdate = 0x1 | 0x0

• If set to true, application updates are installed without user approval within Firefox.
• If set to false, application updates are downloaded but the user can choose when to install the update.

We have a number of users that do not frequently open FF and therefore our reporting shows that they are running an out of date version of the browser.

Has anyone managed to get this auto update mechanism to work without opening the browser? Is it even possible?

Thanks

I seem to be unable to install Firefox on my Windows 11 desktop because there is apparently an old version already on my computer. I wish to reinstall Firefox with your help

For some reason there appears to be an issue between my gmail account and Mozilla/Firefox. When I delete an email, the email below it is also deleted, then I have to dig it out of the trash. It doesn't happen with every deletion, but almost all of them. It's been going on for a few weeks now and is most annoying. Any suggestions for how to cure this issue? Appreciate any help you can provide! Linda

Right, it's bit hard to explain this but I'll try. I often right click on text to search google for it, but also just google stuff regularly. What happens is, after the new tab opening and I move to different tab from that google search, it forces me back to that tab. It usually happens right after opening that tab and just waiting few seconds and then switching tabs will "fix" it but it also randomly switches me to open google search from before after minutes have passed for no reason. This started happening few months ago but as I've been using less and less of my pc it hasn't been TOO much of an issue, but as I am starting to use it more again it is driving me insane. I can try to video it, I tried searching but couldn't find same behavior mentioned anywhere. Not sure what I can try to fix this.

tldr: moving from new google search tab changes tabs on itself and forces google search one to be focused, usually right after opening but sometimes after some time has passed too.

Recently I have had to sign in to my sbcglobal.net email account every single time I open Firefox on my desktop computer. Firefox is default and my sbcglobal.net mail account is set as my home page. This is not a problem on my iPhone. What is the problem with the desktop and why did it start within the last week or 2?

I cant get Pandora to load with Firefox . I am in Mexico and have been using the Browsec VPN to listen to Pandora and all of a sudden it stopped loading. I get the blue screen with Pandora logo but it doesnt go past that. Pandora works on Edge with the same VPN Browsec .

Hello, For FF on Linux running in KIOSK mode, is there a way to allow the user to perform a refresh like you can do in normal mode by pressing F5 ? This seems to be disabled in KIOSK mode.

Thank you, Tom

I am unable to open PDFs from my bank. I tried the following steps;

Change Default PDF Viewer:

   Go to Firefox Settings.
   Scroll down to the Applications section.
   Find Portable Document Format (PDF) in the list.
   Change the action to Open in Firefox or Preview in Firefox.

Clear Bank Cache/Cookies:

   Go to Settings > Privacy & Security.
   Select Cookies and Site Data > Manage Data.
   Search for your bank's website and clear its data.

Firefox not responding. I have tried everything on the Help pages. I have tried reset of everything. I have uninstalled and reinstalled from scratch. Still: when I open it: Firefox does not respond. And everything else also is very slow then. In Windows joblist I can see Firefox with 7-15 threads. One of them "not responding". I have no problems with Chrome nor Edge - W11, 16GB Ram

The same thing happens on my two Dell laptops (Inspiron and Latitude), and a Hyper-V VM (on my desktop PC). They all run Bazzite Linux 6.17.7-ba25.fc43.x86_64.

A video may play for a second or two, and then it's either a black screen, or an error message of "The content doesn't seem to be working."

On the same two laptops and VM, the Chromium Browser, and LibreWolf (a fork of Firefox?), have no issues playing the same videos.

Firefox version on all three systems is 147.0.3.

Any help/guidance welcome with thanks.

I have an issue where Confluence stops working after a while.

The issues are as follows:

• Opening a link will work and show the page.
• After about 5 seconds, the page will turn black.
• Using the search bar does not work, no results show.
• Trying to expand items in the sidebar does not work.
• Clicking on a link in the sidebar does work, but it too will turn black after the same 5 second delay.
• You can't edit pages.

I have found two ways to temporarily fix the issue.

• Clear the cookies for Atlassian.net.
• Go into the inspector, switch to the Network tab, tick "Disable Cache" and reload the page.

Unfortunately, this only fixes it for a week or two until it comes back.

This is not specific to any one Confluence instance. Once one stops loading, all (that we have tried) stop loading.