I-Thunderbird Community Forum

When creating a new email and entering a recipient address, Thunderbird automatically suggests addresses after typing a few characters. However, in my case the auto-complete suggestions take about 10 seconds to appear after I start typing.

I am using Thunderbird version 149.0.1. My settings under Settings → Composition → Addressing are as follows:

☑ Local Address Books ☐ LDAP Server ☑ Automatically add outgoing recipients to: Collected Addresses Initial Directory for Address Book: Last Used Directory

I would like to understand what kind of search Thunderbird performs when auto-completing email addresses.

Also, if anyone has experienced the same issue, how did you resolve it?

Any insights or advice would be greatly appreciated.

During most attempts to move emails to folders in Thunderbird, the operation does not occur for five to ten seconds. Often, I will see a "systems busy" circle during the operation. This has been going on for weeks...

It's a big time waster. I can't do anything else in Thunderbird until the "Move" has been completed.

時間がかかり鈍い作業 ・メールのダウンロードに時間がかかる ・ダウンロードされ受信箱に入ったメールを読もうとすると、初めて開ける場合、クリックした時点での反応が鈍く開くまでに時間がかかる ・添付資料の削除に時間がかかる ・受信箱からフォルダーへの移動

これまでと同じ ・一度フォルダーに分類されたメールは、これまで通りサクサクと開いたり削除したりできる

Whenever I start Thunderbird, I get messages such as that some mailboxes cannot be compacted and some filtering cannot be done "because another operation is in progress". Why is this? How can I prevent it? It is a nuisance having to go and chase down and correct the filtering that has not taken place.

Sometimes the index becomes too large, making searching very difficult. The solution is to reset the index, which involves deleting the global-messages-db.sqlite file. After Thunderbird rebuilds the index, searching is simpler and faster. Adding a menu or an automatic database reindexing process would be a significant improvement!

I have the following very frustrating symptoms:

1) Thunderbird will frequently decide that it does not have the headers for a particular folder, and will reload them. This is in spite of the fact that I had all the headers the last time that I used the program, and I have not restarted Thunderbird or the computer (although I may have put it to sleep). In one specific case, I clicked on my Inbox, and TB started a "compact" operation, and then it started to download *all* of the headers. Eventually it produced an error message for the compaction: " The folder ‘Inbox on williamatwood41@gmail.com’ could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again."

2) Thunderbird will often state that a summary file cannot be opened: "Unable to open the summary file for Drafts on william.atwood@concordia.ca. Perhaps there was an error on disk, or the full path is too long." I have seen this for the Drafts folder, for the Inbox folder, for the Sent folder, and for arbitrary folders that I had previously opened successfully.

3) One day, I clicked on a folder that contained 6116 messages. I saw it download all of the headers. Then the right panel declared "No message found."

The next day, I clicked on the same folder. While downloading the headers, TB listed the low-numbered messages on the right side (upper panel), and then switched to the most recent message once all the headers had been downloaded. So, the behavior changed from one day to the next.

All of this seems to have started when I placed a restriction on the length of time that messages are synchronized. This was done because I was running out of disk space on my 250 GB disk. I subsequently replaced this disk with a 500 GB disk, but have not (yet) relaxed the constraint, because I wanted to get to the bottom of the problem.

My best guess is that setting the disk space limit has triggered some misuse of a pointer, which is resulting in the garbage-in, garbage-out syndrome. However, I could be way off.

I would be very happy to work with anyone on the TB team, and invoke whatever debugging tools are necessary (under direction) to find the root cause of this error.

I HATE this new mail program. It takes forever to load on my computer and is VERY slow. Is there any way to get the old program back? I am 83 years old and find this version very difficult to use. I had the older version for years (more than I can remember) and it was very easy to use. Is there a way for me to get an easier program -- like the old one. Please help me

It is my custom to run spell check after typing an email. Today, sudenly, the write window hangs when I click on spelling. Does not happen in troubleshoot mode. I have no extensions installed and default theme. I did try disabling hardware acceleraton, but did not help.

Yesterday all workd OK, and thre have been no changes to the computer snce.

Title: CardBook 104.7 folder pane frozen ~40 minutes at every startup - TB 140.8.1 ESR - Linux Mint 22.3

Environment: - Thunderbird: 140.8.1 ESR 64-bit - CardBook addon: 104.7 - OS: Linux Mint 22.3 Cinnamon 64-bit - Fresh install of both Thunderbird and CardBook - 3 Gmail IMAP accounts - 5 CardBook address books, all local FILE type (.vcf files in /home/nesko/cardbook/), no CardDAV or remote server involved. Largest address book has approximately 1500 contacts.

Symptom: At every cold startup, the CardBook folder pane (address book list) is completely frozen and unresponsive for approximately 40 minutes. Thunderbird itself starts quickly and all email accounts and other addons function correctly. Only the CardBook folder pane is affected. After approximately 40 minutes CardBook becomes responsive without any user intervention.

Error console output at startup consistently shows: - TypeError: can't access property "addEventListener", currentWindow is null (implementation.js:28:13) - TypeError: can't access property "document", currentWindow is null (implementation.js:567:15) - CardBookXULNotifyListener.js:599:13 - Content process is not responsive while sending DevToolsProcessParent:watchTargets

Additional observations: - On one startup, 8 duplicate CardBook tabs appeared simultaneously when TB's content process finally became responsive, suggesting CardBook was retrying initialization multiple times while waiting for TB's window - Running TB in Troubleshoot Mode (all addons disabled) confirms TB itself is healthy and starts quickly - The errors reference CardBook's own initialization code (CardBookXULNotifyListener.js) attempting to access Thunderbird's window (currentWindow) before it is fully ready - TB's content process unresponsive message appears during the same startup window

Steps taken so far: - Unchecked "Keep messages in all folders" in Synchronization & Storage for all 3 IMAP accounts — this improved overall TB startup time - Unchecked "Run synchronization at Thunderbird startup" in CardBook Preferences → Sync — this reduced the CardBook freeze from over 1 hour to approximately 40 minutes - Reported to CardBook developer at cardbook.thunderbird@gmail.com

Question for TB support: Is there a known issue with TB 140 ESR's content process initialization timing that could cause addons to fire before TB's window is fully ready? The currentWindow is null errors suggest CardBook is initializing at a point where TB's window object does not yet exist. Is there a TB-side fix or workaround for this timing issue?

I posted this question some time back but didn't receive any helpful answers and don't know where my post is. In the upper right-hand corner there is suppose to be 3 symbols. One to lower the app, one to make the app full screen or partial and one with an X. I have jumbled symbols where the 3 good ones are. It does it in trouble shoot mode. I tried disabling addons but I can't get the normal symbols back. Here's what it looks like... Thank you for any help.

Thunderbird used to easy and quick to use - now it is slow and cumbersome. For instance, to get it to send an email there is a delay now. It just seems to be freezing up. Lynn

Hi, I’ve been using Thunderbird, but after installation it’s taking up 128GB of disk space. That seems unusually large — could you please help check what might be causing this?

The Inbox on my Thunderbird emails shows 224 messages but do not open. I have tried opening and deleting but to no avail.

IMPORTANTLY I am still receiving new emails.

After an automatic update of my windows 11, the thunderbird has real perfomance problems! the program open very slow, it freeces permanently, that the program is not usable anymore. I have deleted Thunderbird and reinstalled but it still has the bad performance. Thunderbird on my Laptop with windows10 performance without a problem, is fast and does what it was designed for! What can I do??????????????

Thunderbird has become crazy slow. 5-10 minutes to display an email. It's not my email server because my phone connects to and displays email fast. I have been through all the advice that I can find and cleared, checked, disabled everything that might slow it down. Still crazy slow. If I kill it and restart, I get about 3-4 minutes of reasonable performance and then it just stops. Latest Release Version V147.0.1.

i have a fast machine with 32Gb memory only 60% used, everything else runs fast

I don't want to junk Thunderbird, but it's unusable.

Help!