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I first noticed this issue on "Zen Browser" which is based on firefox source code, but some time after i re-installed Firefox and noticed the issue was on Firefox, like, literally the same lag that happened on Zen was happening on Firefox. I tried deleting the .mozilla(.zen for Zen) and still nothing. i did noticed some things:

- When i start Firefox on safe mode, the lag doesn't happen
- On my brother user on the PC, the lag simply didn't happen
- When the lag is happening, the disk reading goes REALLY high: 

I'll put a screenshot of the disk reading usage, even if it's on Zen executable, remember that the same issue is also happening on Firefox (and was where i noticed the disk usage thing)

I'm unable to sync passwords and such between my desktop and iPad despite repeated attempts via scanning the QR code displayed on the desktop screen. It doesn't seem to recognize that I'm using Firefox for iOS on the iPad in spite of downloading and installing it again. Appreciate any enlightenment on this, thanks.

bold text Hello everybody And sorry for my bad english ... I have an issue with the thunderbird app on my phone ( Asus zenfone 4 , OK it's pretty old ... ) :

When I delete an email , it doesn't go in the trash but is permanently deleted on my phone AND on the server I have said that to the team who is developing the app but i've got the following reply

" This seems like a support issue, and sadly we aren't able to troubleshoot these in our replies. Please reach out for community help at https://support.mozilla.org/products/thunderbird-android and we hope, once your issue is fixed, you might consider updating your review! "

So , I'm hoping for some help here ... thanks for reading

Hi, the other day I upgraded from Windows 10 to Windows 11. Long story short, I had to reinstall Windows 11 and all my apps, including Firefox. My visited links no longer change color. I tried the Settings / Language & Appearance / Manage Colors and nothing works. I did notice that if I click on a link, it changes color for a fraction of a second then reverts back. On a similar note, I use NoScript. I've noticed it looks different. Maybe a background grid. And Privacy Badger is missing the oval slider boxes and the colored selection tab has no color. I'm guessing this is all related somehow.

About a month ago I found that, when I clicked on Firefox browser, instead of the usual page with the default search engine duckduckgo coming up, a very plain page which just said "Search" appeared on screen with an address in the search bar which said something like "hp-search xxxxxxx". And when I entered the address I required it was clear that Yahoo was doing the search. I tried deleteing Mozilla from the Windows 10 control panel and then reinstalling it but each time I did this Firefox seemed to have been replaced by hp-searchxxxx and Yahoo. Eventually, after using an alternative uninstaller (Revo), I was able to remove and replace Mozilla with the genuine browser and search engine. I have a feeling it was when I added "Privacy Badger" or some other extension to Mozilla that the trouble occurred. Has anyone else had this problem and, if so, could they please tell me what I error I made?

Hi iam using thunderbird for sooooo many years maybe 15 i dont remember. BUT lately it makes me crazy. If i am trying to fing some email i am using search area in the top of the app. And it will find nothing. Even if i know there is email from person who i am searching for. I will type just few letters or half od the email name and it will find nothning. To be able to find email i have to go online google mail web and search over there.

Why is it like this?

I have tried to install Thunderbird multiple times on my Windows 11 PC. Everytime I try to import my Outlook files it locks up at 33%. How can i resolve this issue? Thank you.

Dear Team,

I hope this message finds you well.

I am experiencing a significant slowdown in email synchronization in Thunderbird. Emails take a noticeably long time to appear after clicking, and the overall syncing process is extremely slow across all folders.

The problem began on Friday, December 6th, following my use of the "Repair" button on the Inbox (8.9GB) and Sent (10.7GB) folders. After initiating the repair for the Sent folder, synchronization across all folders (Inbox, Sent, Spam, etc.) slowed down considerably.

Already done: Checked "All Mail" on Google IMAP: The folder does not appear in IMAP. Troubleshoot Mode: Attempted, but it did not resolve the issue. Reinstalled Thunderbird: Uninstalled and reinstalled Thunderbird on my Mac, but the problem persists.

The issue seems isolated to Thunderbird and does not impact my Mac’s overall performance, memory usage, or speed. The synchronization delay affects only Thunderbird, while other applications function normally. I would greatly appreciate your guidance on how to resolve this issue and restore normal synchronization performance.

Thank you in advance for your support!

Hello,

my old laptop SSD crashed and I had to re-install Thunderbird. It took a few days to do so, in this time I switched from Windows 10 to Linux Mint.

After an import of a (luckily fresh) backup into the new Thunderbird installation, it don't receive messages between 02. December 2024 and 10. December 2024. I can find them via Webmailer (strato.de), but if I click on "Receive new mails" in Thunderbird, there are "no new messages" in its oppinion.

But it is possible to send me a new Mail to the given address, that will be received immediatly.

What can I do to get these E-Mails of the given date range?

Regards Tim

When using Firefox on Android for a while, attempting to use pinch to zoom on a web site will cause Android to crash, as in the screen will go black, the G logo animation will appear, and I'll be sent back to the lock screen. It's not just the app that crashes. It doesn't seem to be a full reboot as that takes longer and starts with a different animation, but some part of Android is restarting.

It's consistent but not predictable. Pinch to zoom will work on one site fine and then crash on the same site later. It seems to be a resource issue as it's unlikely to happen on a fresh instance and it becomes more likely the longer you've been using Firefox.

This has been happening for several months, since at least July. It's happened both on my old Pixel 6 Pro and my new Pixel 9 Pro. It's happened on both Android 14 and 15.

I eventually found out I could go to Settings > About Firefox > Crashes and get some debugging info, but I don't know what to do with it. I currently have 15 crashes between now and Oct 16th which all say:

java.lang.RuntimeException: Adding window failed

Clicking Share to get more info on the latest one adds:

java.lang.RunetimeException: Adding window failed

at android.view.ViewRootImpl.setView(ViewRootImpl.java:1618)
at android.view.WindowManager.Global.addView(WindowManagerGlobal.java:442)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:158)
at android.app.Dialog.show(Dialog.java:352)
[...]

Caused by: android.os.DeadObjectException

at android.os.BinderProxy.transactNative(NativeMethod)
at android.os.BinderProxy.transact(BinderProxy.java:568)
at android.view.IWindowSession$Stub$Proxy.addToDisplayAsUser(IWindowSession.java:1305)
at android.view.ViewRootImpl.setView(ViewRootImpl.java:1596)
... 18 more

I don't know what to do with this info. Should I file a Bugzilla report with just this? The GUID associated with the most recent one is 7a5e5497-bb62-4e3c-94fc-5c63c51d0830. I can't look it up in crash-stats.mozilla.org. Or should I assume all crash reports are automatically received? I'd still like to be able to have a Bugzilla bug to watch for progress.