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  • Customization

I recently moved thunderbird from my Win 7 laptop to a new laptop with Win11. Folders are no longer in alphbetical order.

I recently moved thunderbird from my Win 7 laptop to a new laptop with Win11. All was OK for awhile. One day all of my Local Folders were no longer in alphabetical order.… (read more)

I recently moved thunderbird from my Win 7 laptop to a new laptop with Win11. All was OK for awhile. One day all of my Local Folders were no longer in alphabetical order. Some folders, like Outbox are under Local Folders. Is there a fix? Please don’t tell me to uninstall and re-install.

Open 2

"Run Now" is greyed out when using filters

When using message filters "Run Now" is often greyed out after running a filter and remains greyed out after the filter has completed filtering. (Hung up?) This does no… (read more)

When using message filters "Run Now" is often greyed out after running a filter and remains greyed out after the filter has completed filtering. (Hung up?) This does not happen if the filter does not find any matching messages. Clicking on another filter and then returning to the first one returns the "Run Now" button to active (not greyed out). Not sure, but the problem might be associated with filters that copy a message file to a Local folder, or delete messages, or move messages to Trash, or all three. I'm stumped. The problem started recently and I'm not aware of any changes I made to Thunderbird.

Open 2 15

Threading, missing associations

Why is threading enabled by default in TB after installation? I add an existing IMAP account to the program. I set sorting by date. If someone replies to an email from a … (read more)

Why is threading enabled by default in TB after installation? I add an existing IMAP account to the program. I set sorting by date. If someone replies to an email from a month ago, it's difficult to find it in threading. It used to be possible to enable it manually, but now it's enabled by default. TB can also lose attachment opening preferences in programs after an update, such as .pdf or .doc. Note that some PDF documents don't display correctly in the built-in preview and require the use of Adobe Reader.

Archived 4 161

how to turn OFF the message preview when I single-click on message?

RE: How to turn OFF message preview when I single-click on message? When in TB message list, and selecting a message for an operation by making a single-click on the mess… (read more)

RE: How to turn OFF message preview when I single-click on message?

When in TB message list, and selecting a message for an operation by making a single-click on the message, the selected message opens. When using CNTL key to select several messages together for an operation, each of the messages opens an individual preview pane. I have searched TB's knowledgebase, but apparently no other users have this problem.

Open 8 16

Why does one account have a different color in the left panel?

I have two Gmail accounts and one school account that uses Office 365. In the left panel where the inbox, drafts, etc. are, the Gmail accounts are listed in blue but the … (read more)

I have two Gmail accounts and one school account that uses Office 365. In the left panel where the inbox, drafts, etc. are, the Gmail accounts are listed in blue but the school account is listed in white. I can't see any reason for this difference in the accounts' settings. What does the difference indicate?

Open

cant resize T'bird window

Since the last update , Tbird is either a default window occupying ~1/3 of the screen , or full screen. The horizontal divider between message list and messages works.… (read more)

Since the last update , Tbird is either a default window occupying ~1/3 of the screen , or full screen. The horizontal divider between message list and messages works. resetting/changing font size didnt solve it neither did

changing toolkit.legacyUserProfileCustomizations.stylesheets from false to true

or creating a new profile

OS linux mint 22.3 Tbird 140.10.0esr

Open 1

After last update email does not open as html

Following the last update of thunderbird my emails are not opening. I get the blue underlined links but not opening as normal. If I click on the Links the email will open… (read more)

Following the last update of thunderbird my emails are not opening. I get the blue underlined links but not opening as normal. If I click on the Links the email will open but not as normal.

Open 3

how to place the contents of emails below the email list

I have Thunderbird on another PC that shows the incoming emails with the contents with the contents displayed under the email list, yet on my new PC I cannot seem to get … (read more)

I have Thunderbird on another PC that shows the incoming emails with the contents with the contents displayed under the email list, yet on my new PC I cannot seem to get that setting. I have to double click an email and it opens a new tab. I have used your help and also YouTube to no avail.

Open 8 23

Threads

Hello! It seems Thunderbird emails are suddenly being 'threaded'. It is causing great confusion in my office. I need to see each email from a person separately in order t… (read more)

Hello! It seems Thunderbird emails are suddenly being 'threaded'. It is causing great confusion in my office.

I need to see each email from a person separately in order to find them easily and also to reply to each one at the time it is received.

Can someone please explain in very simple non-techy jargon:- a) How I 'unthread' messages already threaded AND b) How I stop any new ones being threaded in the first place.

Thank you Tylex

Solved 7 2 202

customize reading pane tools in v 150

Now in v 150, I can no longer modify the tools in the reading pane. Used to be able to but it seems to have disappeared. Of course layout is modifiable but spacing out t… (read more)

Now in v 150, I can no longer modify the tools in the reading pane. Used to be able to but it seems to have disappeared. Of course layout is modifiable but spacing out the tools (so that I don't hit the wrong button in error) or turning some off is no longer an option. The More|Customize does not do much for what I want. Thoughts?

Solved 3 13

Feature Request: A native system tray (AppIndicator) integration

I’d like to request a feature for Mozilla Thunderbird on Ubuntu/Linux: A native system tray (AppIndicator) integration with the ability to: • Run in the background withou… (read more)

I’d like to request a feature for Mozilla Thunderbird on Ubuntu/Linux:

A native system tray (AppIndicator) integration with the ability to: • Run in the background without keeping a window open • Minimize to tray instead of the taskbar/dock • Option to start minimized to tray on system startup • Show unread mail count directly in the tray icon

Right now, users rely on third-party tools like Birdtray, which work but feel like a workaround rather than a seamless experience. A built-in solution would improve usability significantly especially for those who prefer a clean desktop while keeping Thunderbird always running in the background. I think this feature would bring Thunderbird closer to the behavior users expect from modern messaging/email clients on Linux desktops. Would love to see this considered in future updates!

Open 2 22

I have split viwing pane, but the preview on the right has an overlap so I can't see / preview the email.

I have split viewing pane, but the preview on the right has an overlap so I can't see / preview the email. I have tried all "layout" choices but still can't get that li… (read more)

I have split viewing pane, but the preview on the right has an overlap so I can't see / preview the email. I have tried all "layout" choices but still can't get that line to go away so I can view who it is from AND the message. I have tried everything I know but that line remains.

Open 1 7

Is there a different format available to receive emails - mine have changed to small lines of words not very readable.

My email messages format has changed. Used to be a very readable format now it has changed to a bunch of links with small wording. Example - an email from Swansons: [Swan… (read more)

My email messages format has changed. Used to be a very readable format now it has changed to a bunch of links with small wording. Example - an email from Swansons: [Swansons](https://www.swansonvitamins.com/)

[Health concern](https://www.swansonvitamins.com/health-concerns)

[Supplements](https://www.swansonvitamins.com/supplements)

[Women's health](https://www.swansonvitamins.com/womens-health)

[Men's health](https://www.swansonvitamins.com/mens-health)

[Email us](mailto:customercare@swansonsupport.com)

[Call us](tel:18008244491)

[Commit to your health transformation](https://www.swansonvitamins.com/help/company-information/top-10-faqs/10-faqs.html)

[Learn more](https://www.swansonvitamins.com/help/company-information/top-10-faqs/10-faqs.html)

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[Swanson](https://www.swansonvitamins.com/)

Solved 4 17

How do I turn on Smart Quotes for my emails?

This is an inch and foot indicator: " and ' This is quotation marks and an apostrophe: “ ” and ’ I want my emails to be grammatically correct and currently everything us… (read more)

This is an inch and foot indicator: " and ' This is quotation marks and an apostrophe: “ ” and ’

I want my emails to be grammatically correct and currently everything uses the inch and foot indicators instead of quotation marks and apostrophes.

Thanks, Janice

Solved 3 11

Number of new emails in taskbar icon

How do I reinstate notification of number of new emails in my taskbar icon? It has suddenly stopped showing this. I found the same question in 2023 but I don't understa… (read more)

How do I reinstate notification of number of new emails in my taskbar icon? It has suddenly stopped showing this. I found the same question in 2023 but I don't understand the answer.

Open 1 10

Can I set the entire color of calendar events to be that of the category assigned to it rather than just having a tiny color stripe down the righthand side?

I have created several categories that I use to assign a color to each of my calendar event entries. When I do this, the event shows a very thing stripe of my assigned c… (read more)

I have created several categories that I use to assign a color to each of my calendar event entries. When I do this, the event shows a very thing stripe of my assigned category color down the righthand side of the entry. I would REALLY like the entries to be colored entirely with my category colors rather than that tiny stipe. Is this feature available and if not, I am hoping it can be considered in the very near future.

Open 1 21