Costeef Yépp Community Forum

I have a completely vanilla install of TB fully up to date as of this writing [it is version = 156.0.1 (aarch64) and I checked for updates], no extensions, no proxy, on a new OSX 27.0 (Golden Gate) computer and even when idling it is using substantial resources. The only thing even remotely non-basic is their is the Proton Mail Bridge to connect to Proton Mail for one of the linked email accounts, but that is its own little program with its own threads and takes almost no system resources even when sending or receiving mail (which is not happening currently.) Look at the attached screen shot.

In the screen shot I have left Thunderbird to idle for about an hour. No new mail in that time and other then clicking on or off the window to bring it to the fore I have not interacted with the program at all myself. Meanwhile Thunderbird and its Thunderbird GPU Helper are using substantial amounts of the CPU and GPU, have a combine total of 86 threads (more then any two other things running except the kernal tasks) and are hogging ram (not depicted).

Meanwhile among a few other applications (Apple Music, OfficeLibre, etc...) I also have Brave Browser opened in the background running with two windows and a total of 8 tabs wherein Brave is actively downloading GB of data from MEGA as well as performing other admittedly lighter tasks. Even when doing all this, Brave barely registers on computer resources compared to Thunderbird and Thunderbird GPU Helper when they are just idling.

Is this all proton mail's fault with the Proton Mail Bridge? If not is there anything I can do to quell the hunger for computer resources of this voracious beast of an email client that is TB and uses resources as if it were a video game even when idling?

Hello Firefox Support,

I would like to report a reproducible video playback problem in Firefox on Windows 11. I have already spent considerable time troubleshooting it, including testing Firefox graphics and video related settings and ultimately performing a completely clean reinstall of Firefox. The problem persists after the clean installation.

My system configuration is: Device name: Mephisto PC Operating system: Windows 11 Pro for Workstations, 64 bit Windows version: 25H2 OS build: 26200.9457 Windows Feature Experience Pack: 1000.26100.360.0 Processor: AMD Ryzen 7 9700X 8 Core Processor, 3.80 GHz Installed RAM: 32.0 GB, 31.1 GB usable Graphics card: AMD Radeon RX 7800 XT, 16 GB VRAM Integrated graphics: AMD Radeon(TM) Graphics, 486 MB System type: 64 bit operating system, x64 based processor The primary discrete GPU used by the system is the AMD Radeon RX 7800 XT

The problem appeared suddenly. Firefox had been playing videos normally the previous day. As far as I am aware, neither Firefox nor the AMD graphics driver had been updated immediately before the problem appeared.

The symptom is severe video stuttering during playback in Firefox. The video is not merely dropping an occasional frame. Playback becomes visibly and consistently jerky rather than smooth. The most important finding is that I have been able to isolate the problem specifically to Firefox's hardware video decoding.

In about:config, I changed: media.hardware-video-decoding.enabled from: true to: false With hardware video decoding disabled, video playback immediately becomes smooth and continuous. If hardware video decoding is enabled again, the stuttering returns. This is currently the only workaround I have found that reliably eliminates the problem.

I also tested Firefox's DirectComposition hardware video overlay setting: gfx.webrender.dcomp-video-hw-overlay-win Setting this to false did NOT solve the problem. Video playback continued to stutter.

I investigated the related DirectComposition/WebRender video overlay preferences as part of the troubleshooting process as well, but disabling the hardware video overlay did not reproduce the improvement obtained by disabling hardware video decoding itself.

I then decided to rule out corruption of the Firefox installation or profile. I performed a complete, clean Firefox reinstallation. After reinstalling Firefox from scratch, the exact same problem remains. Therefore, the behaviour is reproducible on a clean Firefox installation.

The important observations can be summarized as follows: Firefox with hardware video decoding enabled: video stutters severely. Firefox with media.hardware-video-decoding.enabled = false: video playback is smooth. Firefox with gfx.webrender.dcomp-video-hw-overlay-win = false: video still stutters. Completely clean Firefox reinstall: problem still occurs.

The PC itself has not changed hardware, and the problem appeared despite Firefox having worked correctly on the same machine previously.

Given these results, this appears to involve Firefox's hardware accelerated video decoding path and its interaction with the AMD Radeon RX 7800 XT, the AMD graphics driver, Windows 11 video acceleration, or some combination of these components, rather than ordinary Firefox profile corruption.

Disabling hardware video decoding is a functional workaround, but I do not consider it an ideal permanent solution on a modern GPU which is specifically designed to provide hardware accelerated video decoding. I would therefore appreciate assistance in determining why Firefox's hardware video decoder has suddenly begun producing severe stuttering on this system.

If useful for diagnosis, I can provide additional technical information from about:support, including Graphics, Media, WebRender, hardware video decoding, codec and driver information. I can also perform specific diagnostic tests if you tell me exactly what information is required.

Thank you.

Since the latest update, the uploading of new emails from the server can take minutes to hours. I know the emails are on the server, because I can see them by logging onto my email client on my iPad. Why has Thunderbird suddenly become very frustrating to use? An example which just happened - I was required to enter a 6 digit code to be able to confirm my account before I could submit this question. I waited, and waited and waited to see this code in my Inbox. Finally I went to my iPad to get the code, so I could submit this question. It was there as I expected, but not in my Thunderbird Inbox for another 10 minutes. This is happening far too often, so I am contemplating finding another email program which is not so frustrating.

Hello everyone. Thanks for all your support.

A few weeks ago I started noticing a pop up window was occurring every (approx) 5 minutes in Thunderbird suggesting that I run a compact to save 992MB. I assumed this would stop happening after a few weeks and a few updates from Mozilla, but the problem has remained, so I'm coming here to ask about it.

Context: I'm on Windows 11. I have multiple email accounts that my Thunderbird reaches out to. At least one of the accounts is retired so reaching out to its historical server fails.

Reproducing: For me to reproduce it, I run the compact. Quit Thunderbird. Start Thunderbird. It reports 992MB can be freed. I let it compact. The main inbox disappears and reappears. I wait a few seconds and restart Thunderbird. It again tells me that it can save 992MB by running a compact.

What I've tried: I've tried repair on the inbox folder of the account I'm typically in. That didn't help. I have many other folders across many accounts and not tried to repair any other folders. I've searched the Mozilla help system.

Logs: It seems to me that a compact is probably failing but I don't know where to look for evidence of the failure.

Thunderbird freezes when downloading email only from transaction@notice.aliexpress.com

Environment: Windows 11 Pro, Surfshark VPN and Bitdefender Total Thunderbird 156.0 (64-bit), yahoo.ca POP3 account

The Symptoms: Thunderbird stopped downloading emails from my yahoo.ca account with the message "Downloading message 1 of xx" where xx was increasing from one day to the next.

What I Have Tried: I disabled the antivirus and VPN without any result. I searched on internet and I tried the following solution:

 - I deleted the file named global-messages-db.sqlite
 - I repaired and compacted all the folders

without any result. I entered the web interface in my yahoo.ca account and I saw that after the last message downloaded in Thunderbird there was a message from transaction@notice.aliexpress.com. I deleted the message from transaction@notice.aliexpress.com, restarted Thunderbird and it started downloading messages until the next email from transaction@notice.aliexpress.com. I repeated the procedure several times with the same results. Thunderbird downloads any message except messages from transaction@notice.aliexpress.com. For example the messages from promotion@aliexpress.com are downloaded without problems.

I installed Thunderbird 156.0 (64-bit) on another computer I have, using the same environment, with the same result.

Any insights or guidance would be greatly appreciated!

Firefox runs real slow when I changed screens. Sometimes many seconds, things just quit working screen goes blank.

Sometimes it goes to wrong screen. I do not know how to reinstall or update. I would like to talk to a person I am old. I have no technical ability at all. I am confused by all instructions online. Please help me

I am running Thunderbird 140.9.1esr on openSUSE Tumbleweed.

For a long time now, Thunderbird often runs at high CPU (80-100% of one core), for several minutes at a time (5-10 minutes). This seems to happen many times every day, with no apparent cause from my end. (I just got back from Lunch, and the fan on my laptop was going crazy because of the high CPU.)

What can we do to identify and fix this issue?

I have thunderbird for many years and now giving me trouble with my email that I get from comcast not letting email to come up says not responding and when it comes up and check the mail and then lower it to taskbar and their is a second copy which I lower it also also please help this is all has started recently and need help badly. If you need more information please let me know

I reported this to you by last Friday but I have received no response so far. After reporting to you, I tried all possible trouble tests and checks, then took following steps. 1 - I deleted my copy of Thunderbird from my PC 2 - I loaded a new copy of Thunderbird - all went well 3 - But situation remains, the program opens, reacts very slowly to commands but I can not get into any functions. Thunderbird does not show any emails, nor can I read older emails stored on my computer 4 - I ask you kindly for speedy help, my email function is fully down. Yours - Jarl Jaatinen - Finland

Noticed in LM, the last couple Tbird versions, the context menu doesn't close, when click anywhere on active window, away from the context menu. Happens if R click a message in thread pane, or pretty much anywhere else that R clicking opens a menu.

• Only* hitting Esc key closes it.

Could be a profile issue? (but isn't due to theme used in Tbird - tested several, incl. native w/ Tb package).

Normally, opening a context menu, then L clicking anywhere inside the active window, closes the context menu (how it works in Firefox).

Also, opening a context in Tbird (if don't close it), switch to another app, the Tbird context menu shows on top that app.

We are facing issues with Thunderbird mail application.

Incoming emails are not being received in Thunderbird. Thunderbird is running very slowly and frequently becomes unresponsive. Sending and receiving emails is taking a long time. We have already restarted the application and system, but the issue still persists.

Kindly check the mail server settings and Thunderbird configuration from your end and advise on the necessary action to resolve this issue as soon as possible.

Your prompt support will be highly appreciated.

In the last month or 2, when I delete an email it does not show in the trash folder. I can wait from 5 minutes to even the next time I reboot my puter to finally see it it trash. Sometimes it sends it to the all mail or important folder instead of trash. And if I delete from there, it still takes tons of time to end up in the trash folder...if it even gets there. This seems to be getting worse by the day. I have clicked repair folder, no change, I have cleared Thunderbird's cache, no change. It's also now taking way too much time to load an email that contains a picture. This happens with at least 3 of these gmails. I'm at a loss here and extremely frustrated and about to change these gmails from imap to pop. win10 and TB is up to date. But it doesn't compact folders as much as it used to either. Any help appreciated

I don't know where to start. Ever since the update to version 154 I've been having one problem after another: switch from Comcast to Yahoo causes problems with THunderbird, slow indexing, arbitrary folders showing up in different email addresses (confuses my account with my wife's' some of that may be problems dealing with gmail issues), lost email folders after attempted repairs. Three months ago there were none of these problems. I have not yet tried switching back to the last updated version of 153, but 154 does seem to have many more problems. I've run troubleshooting.

I am not a computer expert and there is only so much time I can devote to this, but even computer repair services I've called are at a loss and very pessimistic about the ability to repair things. In all the years (over a decade) my wife and I have used Thunderbird, there have never been as many problems as have surfaced in the last two months. Maybe the best that can be done is to hope that updated versions will gradually fix these issues. I will say that my Macbook Air (M2 chip) has far more problems than my iMac (M1 chip). I have checked and rechecked all server settings (smtp and imap). Although more cumbersome, things perhaps work better if I just stick to webmail options.

All of a sudden I have to open the program twice for it to run. First time the screen opens but it is just blank and says it is not responding. So I close it and then open it again and it is fine. Anyone know why this is happening?