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Thunderbird had never crashed before, but lately, after the last 2 Windows 10 updates within the last 2 weeks, it crashes. It's at 128.5.2esr, the next-to-last update.

It always crashes when I choose "About" and it starts downloading the update. It appears that it doesn't get the 1st byte before crashing. It will still say 0 bytes when it crashes.

It also crashes if I leave it running and the screen goes through the screen saver mode and turns black. Twice it crashed while I was using it.

I thought it might have something to do with the fact that I had 4,000 emails in my Inbox (is there a limit?), so I deleted many and moved many to folders. I now have just under 1,000 in my Inbox.

I also tried restarting in Troubleshoot Mode and updating, but it still crashed at 0 bytes downloaded.

Is there a way to manually download the update and apply it? I can't find it on the website.

The next thing I know to do is reinstall. Is there anything I can try before doing that? Would you suggest uninstall first or reinstall over what's here?

Hi,After many years of excellent use, thunderbird keeps crashing just recently with a "I'm sorry" popup. I seem to get about 20-30 secs of use each time I click to open it again. It receives emails and send them (provided I am super quick) and crashes. I would put myself in the low PC literacy camp as well and truly retired. ta david

We are getting errors that css values not defined as if the css file is not loaded from our CDN, which is only happening in Firefox and not other browsers that we support.

We confirmed something changed in Firefox that is triggering this around FF version 132. With the ESR (currently 128.5) and the page is working correctly. When we switched back to latest 133 and the bug is there

In the situations it happens, sometimes our css is NOT being loaded. In others, it is loaded and doesn't work but I see things trying to render before the file shows up in the console network logs. When it works...it is coming up cached. So this feels like a race condition of some type

I'm pretty sure the rule is that css is blocking, because we discussed race conditions when we implemented this, so this might be a Firefox bug? If this is a Firefox bug that isn't in an esr yet, we want to get it filed against firefox and fixed before the next esr.

We even tried a hacky patch on our code's method that is in question, as well as tried putting the expected css font-family style into a <style> tag in our index.html. The patch worked on Windows. It did not work on Mac. Stepping through the code, we see `undefined` / `null`. This definitely implies that the css styles simply have not been applied when the first component asking for the theme is routing through this code.

So again: our Firefox > 132. ESR up to 131 doesn't produce this issue, so something changed in Firefox 132.

If we tried loading our css file in a parent page (just loading, not using) to get it into the mix sooner, it doesn't help. An iframe is still loading faster than its parent frame is loading that css file from the CDN.

I have numerous Co's and people trying to sell me stuff that I do not want. They continue to send these emails even after I have unsubscribed numerous times. I was able to block some awhile back, but have forgotten how to do it or that feature is no longer available. Help appreciated for sure. Thank you.

Hi!

Why is Thunderbird consistently taking about 90% CPU? My laptop is trying to jet off! Unless until I kill it, which improves the situation for a while, but give it a couple of hours and it is back at it again!

BR, M.W.

Suddenly, Thunderbird is crashing everytime I try to use it. I have rebooted my Windows 11. I have enough room on my disk. Nothing else except Chrome is running. How do I fix this?

Firefox freezes when signing in/typing username during the Gmail sign-in. Since the V..0 release, Firefox crashes every time I sign in to Gmail. I have already disabled all add-ons and tried signing in in safe mode, but the issue persists. As soon as I start typing the third letter in the sign-in field, Firefox freezes.

All of a sudden, I get a "Not enough room to save" error message when I try to download a fill. There is plenty of room on my disk.

Also, it's not giving me the option of just opening the file.

I've been needing to use Edge to download files.

bold text Hmm. We’re having trouble finding that site.

We can’t connect to the server at www.googleadservices.com.

If you entered the right address, you can:

   Try again later
   Check your network connection
   Check that Firefox has permission to access the web (you might be connected but behind a firewall)

One of my six different Gmail accounts that I have active in Thunderbird takes forever to catch up and load up compared to all the rest ... this has been going on for years

The update bar in the lower right will sit there at halfway through for minutes... .

Attach screenshot please look at the bottom right corner also

Thank you for Anybody's help Craig, Seattle

when I am in my Thunderbird email, recently, when I go to delete emails, I can only go a few and the system stops and the top bar states "not responding" for a minute or so, and then allows me to continue. But that also freezes after additional actions in deleting emails. This slows the operation of the system and I want to recognize what it is, eliminate it and allow the Thunderbird to continue to operate the way it has done for years.

For some reason, I am getting message that the Certificate for server is not valid (etc.). I can not get or send my emails as of this morning. Is there something I can do to resolve this issue?

Over the past couple weeks of updates, the about:processes page is now missing several elements, such as the memory usage, CPU usage, and the close (X) button for each process/tab. See attached screenshot. Normally each row would show the memory, cpu, and if it's a closeable tab, the X button would be on the far right upon hover.

Browser: Firefox Developer Edition 135.0b3 64-bit, build 20250110123854 OS: Windows 10 22H2 64-bit (Windows_NT 10.0 19045)

Let me know what other info you need to squash this bug. Thank you!

My TikTok account @JosephatKennedy was suspended without any valid reason, and after numerous attempts, TikTok support has been unhelpful. I need clarity on why this happened and how I can get my account back. @TikTokSupport @tiktok_us #TikTokHelp #AccountSuspended