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Firefox is the only application affected (latest 107.0.1, Windows 11 pro latest updates). I have updated all drivers, run system and memory checks, uninstalled deleted remaining files and registry settings, twice actually all to no avail.

I have recently changed ISP but cannot see how that affects just Firefox (Chrome/Opera/Edge all work) and also moved to Bit Defender antivirus. Here I think I saw startup installations in Chrome etc for bit defender but never for Firefox. I have tried turning off all virus web protection still no joy.

I have looked briefly at the crash reports but with my level of expertise I can see no common crash reason.

I have had no add-ins installed for last week while trying to get this to work again. I have used Firefox for years and have no wish to move to another browser but this situation is driving me nuts.

If there is anybody out there with any ideas on next steps I could take?

Cheers Mike

When downloading messages if there is a trojan in an email Bitdefender quarantines my entire inbox and subsequent emails in the same download have no inbox to write to so give an error. There is a work around but it is a pain. I have to do the following.

1 Log in to webmail 2 Delete suspect emails manually 3 Delete the popstate.dat file 4 Rerun the download.

This is a pain and I run the risk of losing older emails. I have switched off antispam in Bitdefender to no avail. Running 64 bit Windows 11 with the latest versions of Thunderbird and Bitdefender.

Hope someone can help.

Suddenly I cannot send emails using Thunderbird. I have tried changing my Outgoing Server smtp.xs4all.nl in various ways, but now I am completely confused. It's possible too that incoming messages are not arriving too, since nothing has arrived today. An additional complication is that I am now in France instead of Holland, but in the past that was never a problem.

Furthermore, I have a VPN called SurfShark, which I pay for but have not found useful for as far as I know. Generally, I set it to Paris, but disconnecting it doesn't seem to make any difference. I have Bitdefender virus but I cannot find how to temporarily disable it. The same applies to firewalls. This is driving me mad.

The 'Send Message Error' is - Sending of the message failed. Unable to authenticate Outgoing server (SMTP) smtp.xs4all.nl. Please check the password and verify the 'Authentication method' in 'Account Settiongs | Outgoing server (SMTP)'.

I have tried to modify the the SMTP server settings in various and I am not sure now whether anything is correct. I also reinstalled the latest version of Thunderbird, but that didn't change anything. The SMTP Server settings are presently as follows:

Description: Vic **** Server Name: smtp.xs4all.nl Port: 465 Connection security: SSL/TLS Authentication method: Normal password User Name: v**.@xs4all.nl

I don't know if it's really necessary to disguise my Description and User Name with asterisks: let me know. The 'Email me' square below does not respond (visibly) when ticked in FireFox.

How do I get out of this mess please?

My Firefox is up-to-date (107.0.1), and it was working fine for some time but suddenly websites started to unload or partially load and so slow. I thought it was a connection problem but then I realized things work fine with Chrome (which I'm using now to type this). I checked the help articles about the possibility of being blocked by a firewall or anti-virus, and I did add Firefox in the exceptions for both, and I made many reboots, and still Fiirefox is not working and not loading the pages quickly (if at all). I even reduced the security level in Firefox settings and picked the "No Proxy" option, and disabled my anti-virus (Avast) completely, but nothing works at all. It was fine just yesterday.

I use Win7 64bit

Tips please? Thanks.

I opened Firefox the other day and couldn’t open any websites or settings. I tried searching things in the searchbar and nothing would even begin to load. I just have the same white screen no matter what I click on. I tried clicking on my bookmarks, I tried opening the settings but nothing would begin to load or open.

I’ve reinstalled Firefox a handful of times, refreshed it, ran it in troubleshooting mode, but nothing seems to work. My other web browsers work fine, all my other apps run fine. I’m not sure why it’s not loading anything, and I haven’t really been able to find any answers online because I’m not sure how to phrase what’s happening correctly.

I’m on Windows 11.

I would suggest within the last month or so Firefox has started to hang in a way that everything continues to "work" but I cannot switch tabs and I cannot do anything else with Firefox until I kill it.

I can periodically reproduce this by: Randomly select and copy text on a website.

Behavior observed: You can no longer switch tabs, enter a new location, close tabs, or really interact with the browser at all even though it is not dead. Keyboard shortcuts do not work either.

Version: 107.0

Hi, my google ads don't display correctly in google searches - can anyone help please? Mac M1 / Latest Firefox

Formatting is fine for the first second after the search, then chanegs and text displays over the images in the ades and is unreadble, unless I hover my moude over the ad.

With thanks

Whenever a website prompts for me to upload or download a file and I except Firefox crashes, quitting in its entirety. This still occurs in "Troubleshoot" mode so I assume it is not any of my extensions. Here is a crash report from when this occurred if it helps. Another odd observation I made is that I am able to upload a file if I use a "drag-and-drop" feature on a website.

Hi,

The highlighted process sometimes goes up to as high as 55% ish CPU for hours on end, making my computer lag for no reason. If I individually close the process, nothing happens, and the issue fixes itself (firefox runs fine with it closed).

It is concerning since I could not find anything on google about this process, is this some kind of malware? I did run a MalwareBytes scan on my entire computer, and nothing turned up.

Please let me know what that process is.

Hi

Any suggestions about why the display might be glitching in Thunderbird... attached image as an example. Missing letters and things that sometimes reappear when you mouse over them. Occasionally get neon green lines too. Something to do with my computer's graphics settings? Doesn't happen all the time.

I have the latest version of Thunderbird.

Thanks.

Hi,

Running into a strange problem with FireFox on Windows that I cannot replicate on IOS and Android devices.

I created a custom font and it seems that at 100% zoom my characters are getting chopped on the bottom. At 90% and 120% its renders correctly.

I have attached a sample screenshot with the font at 120% and the font at 100% resized so they are equal in total pixel volume to illustrate the difference.

Already looked at the following:

• Turning off ClearType in Windows.
• Various settings using the font-smoothing css property:

https://developer.mozilla.org/en-US/d.../font-smooth

Neither of these seem to have any effect. Because my font is meant to have an old school video game style and feel the way that it renders, trying to smooth it over has a negative effect.

I realize the fix may not be something that can be changed in FireFox itself, but if anyone who has experience with this type of issue can offer any advice or guidance it would be greatly appreciated.

You can play around with the zoom levels with my font here: https://www.stevesgames.com/about

Hi,

I have for some time (over a year) been using a remote server as a SOCKS5 proxy for Firefox so I can bypass my local ISPs filtering.

The proxy connection is setup using an SSH tunnel like this:

ssh -D 8080 -q -C -N -f root@<remote server> That sets up port 8080 on my local machine to listen for connections which will be forwarded to ssh on the remote server acts as aSOCKS4/SOCKS5 proxy.

    -D [bind_address:]port
            Specifies a local “dynamic” application-level port forwarding.  This works by allocating a socket
            to listen to port on the local side, optionally bound to the specified bind_address.  Whenever a
            connection is made to this port, the connection is forwarded over the secure channel, and the
            application protocol is then used to determine where to connect to from the remote machine. 
            Currently the SOCKS4 and SOCKS5 protocols are supported, and ssh will act as a SOCKS
            server. 

Tried it today and it doesn't work any more. I've attached a picture of my Firefox Proxy settings and a picture of the Firefox version I am currently running. plus a picture of the error I get when I try to access the BBC website using Firefox via the proxy.

I've tried all combinations of "Proxy DNS when using SOCKS v5" and "Enable DNS over HTTPS" with no effect. I've also tried it from "Troubleshooting Mode" and the same thing happens.

I also tried accessing https://www.bbc.co.uk through the same proxy by using the command:

curl --silent --location --socks5 localhost:8080 https://www.bbc.co.uk

and it worked perfectly.

I'd be grateful if you could have a look at it and let me know what is wrong.

Thanks, Alan

Hey, so I've just spent the past weekend attempting to troubleshoot this issue and nothing is working.

The issue: Firefox either crashes (only Linux) or slows down drastically alongside a CPU temp spike (Linux and Windows). Temps are 25 Celsius at idle, 30-40 while using Firefox for the first few minutes, and then it spikes up to 55-65 Celsius and never drops back down to normal unless I close the browser. Chromium-based browsers like Chrome, Brave, Edge all run fine with no crashes, no slow down, and normal temps.

Things I've tried to troubleshoot the issue:

• Reinstalled Firefox
• Tried troubleshoot mode
• Updated drivers
• Enabled and disabled hardware acceleration
• Made some configurations (media.ffmpeg.vaapi.enabled set to true, accessibility.force_disabled set to 1)
• Tried both Wayland and Xorg on Linux, changed the window protocol to wayland instead of xwayland
• Changed operating systems (Fedora, Arch Linux, Windows 10)
• Reinstalled Fedora and Arch
• Disabled XMP profile in BIOS
• Performed Memtest (no errors)

And a few of my crash reports:

• https://crash-stats.mozilla.org/report/index/c4600e0b-80c5-4c1d-a4ca-783a40221212
• https://crash-stats.mozilla.org/report/index/81164758-f350-41d3-862e-db0e30221211
• https://crash-stats.mozilla.org/report/index/2e6fe761-c74b-4fb1-9862-1821b0221211
• https://crash-stats.mozilla.org/report/index/b0b385ad-8c71-4f5a-9a1c-8446b0221212
• https://crash-stats.mozilla.org/report/index/380c25a3-c109-4fc1-b1d8-17ba70221212
• https://crash-stats.mozilla.org/report/index/a19af1cf-656b-49a9-bc1a-7c4de0221212
• https://crash-stats.mozilla.org/report/index/a81cd713-9d75-4e9b-adb0-341cb0221212
• https://crash-stats.mozilla.org/report/index/ffe07939-cc6e-490a-be1b-6a3160221212
• https://crash-stats.mozilla.org/report/index/f68e8cb0-74a2-48d9-977c-908830221212
• https://crash-stats.mozilla.org/report/index/91f8f817-b6f8-47d7-a029-170800221212

Perhaps I'm spending too much time into this but I really want to know what is causing this and whether it's pertaining to my hardware or Firefox itself. Any help appreciated.

Hello, have any of you encountered such a problem as different email content than it should be? On the main server the content is correct, only through the thunderbird application I encountered such a problem. Is there any solution to this problem ?

For years I have been using "Fetch headers only" option. But beginning from version 102.1.1 "Download full message body" link doesn't work at all. Tested on multiple accounts on multiple PC-s. Older version 91 works fine, but I can't roll back because of database conversion. Now I actually can't use Thunderbird because I can't read incoming mails.

Clicking the mousewheel still works, but scrolling doesn't work. This behavior occurs on tab bar as well.

Using option "Restart with addon disabled" from about:profiles can make the mousewheel scrolling work, but manually disabled all addon and restart just won't solve it.

I installed Firefox onto this new computer, and it was working fine. After a (possibly unrelated) Microsoft Windows update, Firefox stopped working correctly. Now all windows (except "Settings") are completely blank. I can't sign into my Firefox account, because the sign-in window is also blank. I don't know if this helps, but I've noticed that when I click on the "Firefox View" button in the upper-left corner of the screen, I see a box that says, "Switch seamlessly between devices" and includes a progress bar that indicates it's "11 % complete", which it has continued to say for three days. I've refreshed, uninstalled, and reinstalled Firefox several times and get exactly the same result (including the "11% complete" notice in Firefox View). Please help -- I've used Firefox for years and would very much like to continue to use it on my new computer, but right now, I'm stuck with Microsoft Edge (which is working fine ... but I love Firefox)!

OneDrive web (onedrive.live.com) doesn't show any files/folders. The area where the files/folders should be displayed is just empty. Now the reason I believe this might be a Firefox issue is because I don't have that problem when I use OneDrive on a Private window. OneDrive on a Private window works just fine, the issue is on the regular non-private window where I wan't my session to stay open.

I already tried clearing 'everything' including cookies, site settings and offline website data. I checked all the boxes and the issue persist.

See attached screenshot.

Thanks!

Hello,

since a few days I have a strange cursor, possibly related to the latest version. The problem only occurs in Firefox.

No matter where I click, in search histories, settings or on websites, the cursor that appears when you want to write something appears everywhere. So the flashing line, I just can't write anything.

How can I deactivate it? I have already asked in other forums, but no one has an answer.

I'm attaching a few screenshots below.